Expose CompilerVisibleProperty to AnalyzerConfigOptionsProvider.GlobalOptions

[Corniel]

When creating a .csproj file:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <CustomProperty>Custom value</CustomProperty>
  </PropertyGroup>

 <ItemGroup>
   <CompilerVisibleProperty Include="CustomProperty" />
 </ItemGroup>
 
</Project>

The value of the <CustomProperty> is exposed to the AnalyzerConfigOptionsProvider.GlobalOptions within the context of a Roslyn code analyzer. How Roslyn solves this is as follows:

It generates an .editorcofig file with the name: obj/{Configuratioin}/{TargetFrameWork}/{ProjectFileName}.GeneratedMSBuildEditorConfig.editorconfig.

In the reproducer this is the body:

is_global = true
build_property.CustomProperty = Custom value
build_property.TargetFramework = net8.0
build_property.TargetPlatformMinVersion = 
build_property.UsingMicrosoftNETSdkWeb = 
build_property.ProjectTypeGuids = 
build_property.InvariantGlobalization = 
build_property.PlatformNeutralAssembly = 
build_property.EnforceExtendedAnalyzerRules = 
build_property._SupportedPlatformList = Linux,macOS,Windows
build_property.RootNamespace = CompilerVisibleProperty
build_property.ProjectDir = ~\buildalyzer\tests\projects\CompilerVisibleProperty\
build_property.EnableComHosting = 
build_property.EnableGeneratedComInterfaceComImportInterop = 
build_property.EffectiveAnalysisLevelStyle = 8.0
build_property.EnableCodeStyleSeverity = 

To actually solve this, this file has to be added to the AnalyzerConfig somehow. I'm not sure if this can be achieved in Buildalyzer, or that it is only possible to do this when spinning up the diagnostics.