Update dependencies from https://github.com/dotnet/corefx build 20190226.1 (#386)

This change updates the following dependencies
- System.CodeDom - 4.6.0-preview4.19126.1
- Microsoft.Win32.Registry - 4.6.0-preview4.19126.1
- System.Reflection.TypeExtensions - 4.6.0-preview4.19126.1
- System.Security.AccessControl - 4.6.0-preview4.19126.1
- System.Security.Cryptography.Xml - 4.6.0-preview4.19126.1
- System.Security.Permissions - 4.6.0-preview4.19126.1
- System.Security.Principal.Windows - 4.6.0-preview4.19126.1
- System.Reflection.Emit - 4.6.0-preview4.19126.1
- System.Configuration.ConfigurationManager - 4.6.0-preview4.19126.1
- System.Diagnostics.EventLog - 4.6.0-preview4.19126.1
- System.Windows.Extensions - 4.6.0-preview4.19126.1

eng/Version.Details.xml

 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.Win32.Registry" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="Microsoft.Win32.Registry" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Configuration.ConfigurationManager" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Configuration.ConfigurationManager" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Diagnostics.EventLog" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Diagnostics.EventLog" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.TypeExtensions" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Reflection.TypeExtensions" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Security.AccessControl" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Security.AccessControl" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Cryptography.Xml" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Security.Cryptography.Xml" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Permissions" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Security.Permissions" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Principal.Windows" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Security.Principal.Windows" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.Windows.Extensions" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.Windows.Extensions" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
-    <Dependency Name="System.CodeDom" Version="4.6.0-preview4.19123.2">
+    <Dependency Name="System.CodeDom" Version="4.6.0-preview4.19126.1">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>327def063eb5eddb723edcee84815d9495b4021c</Sha>
+      <Sha>0fa22d4b6753c47b6139980255e932341353179e</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>

eng/Versions.props

@@ -8,17 +8,17 @@
   <!-- NuGet Package Versions -->
   <PropertyGroup>
     <!-- Packages that come from https://github.com/dotnet/corefx -->
-    <MicrosoftWin32RegistryPackageVersion>4.6.0-preview4.19123.2</MicrosoftWin32RegistryPackageVersion>
-    <SystemConfigurationConfigurationManagerPackageVersion>4.6.0-preview4.19123.2</SystemConfigurationConfigurationManagerPackageVersion>
-    <SystemDiagnosticsEventLogPackageVersion>4.6.0-preview4.19123.2</SystemDiagnosticsEventLogPackageVersion>
-    <SystemReflectionEmitPackageVersion>4.6.0-preview4.19123.2</SystemReflectionEmitPackageVersion>
-    <SystemReflectionTypeExtensionsPackageVersion>4.6.0-preview4.19123.2</SystemReflectionTypeExtensionsPackageVersion>
-    <SystemSecurityAccessControlPackageVersion>4.6.0-preview4.19123.2</SystemSecurityAccessControlPackageVersion>
-    <SystemSecurityCryptographyXmlPackageVersion>4.6.0-preview4.19123.2</SystemSecurityCryptographyXmlPackageVersion>
-    <SystemSecurityPermissionsPackageVersion>4.6.0-preview4.19123.2</SystemSecurityPermissionsPackageVersion>
-    <SystemSecurityPrincipalWindowsPackageVersion>4.6.0-preview4.19123.2</SystemSecurityPrincipalWindowsPackageVersion>
-    <SystemWindowsExtensionsPackageVersion>4.6.0-preview4.19123.2</SystemWindowsExtensionsPackageVersion>
-    <SystemCodeDomPackageVersion>4.6.0-preview4.19123.2</SystemCodeDomPackageVersion>
+    <MicrosoftWin32RegistryPackageVersion>4.6.0-preview4.19126.1</MicrosoftWin32RegistryPackageVersion>
+    <SystemConfigurationConfigurationManagerPackageVersion>4.6.0-preview4.19126.1</SystemConfigurationConfigurationManagerPackageVersion>
+    <SystemDiagnosticsEventLogPackageVersion>4.6.0-preview4.19126.1</SystemDiagnosticsEventLogPackageVersion>
+    <SystemReflectionEmitPackageVersion>4.6.0-preview4.19126.1</SystemReflectionEmitPackageVersion>
+    <SystemReflectionTypeExtensionsPackageVersion>4.6.0-preview4.19126.1</SystemReflectionTypeExtensionsPackageVersion>
+    <SystemSecurityAccessControlPackageVersion>4.6.0-preview4.19126.1</SystemSecurityAccessControlPackageVersion>
+    <SystemSecurityCryptographyXmlPackageVersion>4.6.0-preview4.19126.1</SystemSecurityCryptographyXmlPackageVersion>
+    <SystemSecurityPermissionsPackageVersion>4.6.0-preview4.19126.1</SystemSecurityPermissionsPackageVersion>
+    <SystemSecurityPrincipalWindowsPackageVersion>4.6.0-preview4.19126.1</SystemSecurityPrincipalWindowsPackageVersion>
+    <SystemWindowsExtensionsPackageVersion>4.6.0-preview4.19126.1</SystemWindowsExtensionsPackageVersion>
+    <SystemCodeDomPackageVersion>4.6.0-preview4.19126.1</SystemCodeDomPackageVersion>
     <!-- Packages that come from https://github.com/dotnet/corefxlab -->
     <SystemReflectionTypeLoaderPackageVersion>0.1.0-preview2-181205-2</SystemReflectionTypeLoaderPackageVersion>
     <!-- Maintain System.CodeDom PackageVersion at 4.4.0. See https://github.com/Microsoft/msbuild/issues/3627 -->