Activate Server mode for .NET Core compiler (#13740)

* Activate Server mode for .NET Core compiler

* Update FSharp.Profiles.props
Co-authored-by: NTheodore Tsirpanis <teo@tsirpanis.gr>

* Update FSharp.Profiles.props
Co-authored-by: NDaniel Plaisted <dsplaisted@gmail.com>

* Delete runtimeconfig.template.json

* Update fsc.targets
Co-authored-by: NVlad Zarytovskii <vzaritovsky@hotmail.com>
Co-authored-by: NTheodore Tsirpanis <teo@tsirpanis.gr>
Co-authored-by: NTomas Grosup <tomasgrosup@microsoft.com>
Co-authored-by: NDaniel Plaisted <dsplaisted@gmail.com>

FSharp.Profiles.props

@@ -14,4 +14,8 @@
     </Otherwise>
   </Choose>
 
+  <PropertyGroup>
+     <!-- Override the setting for the Arcade UserRuntimeConfig for fsc on .NET Core -->
+    <ServerGarbageCollection>true</ServerGarbageCollection>
+  </PropertyGroup>
 </Project>