* InteractiveHost for .NET Core

* Merge fix

* Fixes

* Typo

* Workaround for https://github.com/dotnet/interactive-window/issues/156

* Fix

* Update OptProf config

* Fix deployment of rsp files

* Fix signing.

* Clean up unit tests dependencies.

* Remove unnecessary references.

* Fix reset interactive command

* Fix OptProf config

* Add missing project refs

* Fix InteractiveHost deployment

* Process rsp file fully in InteractiveHost process and send back results.

* Fix build from VS.

* Retrieve metadata resolver parameters from InteractiveHost process.

Simplify keeping search paths in-sync between InteractiveHost and InteractiveEvaluator.

* Fixes

* Fixes

* Check for failures to create process in unit tests

* Test

* Pending buffers

* Fix submission project creation

* Logging

* Serialize exceution and process initialization

* Fix reference completion, resolution.

* MetadataReferenceResolver fixes

* Fix failing .NET Core tests

* Target netcoreapp.

* Set DOTNET_ROOT

* Fix NGEN/OptProf

* Avoid loading Microsoft.CodeAnalysis.Scripting

* Fix

* Feedback

* Feedback

* Feedback

* Comment on dependent target

* Disable interpreting of strings as DateTime during deserialization:

* Merge fix

Fixes https://dev.azure.com/devdiv/DevDiv/_workitems/edit/1135706

variables of the desired type

This reverts commit 646489a3.

* Build color schemes into pkgdef resources

* Add files to read items from PKGDEF files

* Apply ColorScheme PKGDEF as defaults colors

* Add ColorScheme dropdown to Advanced Options page

* Update formatting for contributed PkgDef files

* Add margin to custom theme warning

* Address ColorApplier feedback

* Updated based on PR feedback

* Change to a VsixColorCompiler package that includes VC runtime

* Remove VsixColorCompiler

* Move native methods

* Remove PKGDEF reading

* Add additional color options to ColorSchemeOptions

* Add color scheme reader for reading the scheme XML

* Add coverter for turning color schemed into registry entries

* Update applier to read schemes from xml

* Initialize applier on package load

* Update option pages to refresh onLoad

* Remove VsixColorCompiler PackageReference

* Implement feedback from Code Review

* More feedback from Code Review

* Update file headers

* WIP

* Resolve PR feedback

* Use SchemeName in place of name strings

* Fix options persistence

* Make OptionChanged event nullable

* Revert change to GlobalOptionService

* Revert to using VisualStudioWorkspace for accessingOptions

No engine work