Follow Readme.md "Building from source" lead to slow build (due to test projects) and contains an error when Stride.sln is initially opened (because of a test project).

Release Type
Github

Version
master (latest: 4f117bcf09ac6dae6d957781d743d36272bfb386 )

Platform(s): Does the problem occur on Windows, Android...?
Windows

Describe the bug
I followed the Readme.md "Building from source" at one step it says open build/Stride.sln
After visual studio is loaded with solution it directly shows an error in Stride.VisualStudio.Package.Tests.csproj.

On this line:
<Exec Command="&quot;..\..\core\Stride.Core.Tasks\bin\$(Configuration)\$(StrideEditorTargetFramework)\Stride.Core.Tasks.exe&quot; locate-devenv &quot;$(MSBuildBinPath)&quot;" ConsoleToMsBuild="true">

Problem is that the .exe is not (yet) build.
Also the default "Build" (Solution) is very slow due to tests being included (especially due toStride.Core.Assets.Editor.Tests).

To Reproduce

Follow "Building from source" in of README.md

Expected behavior

Test should be placed in their own build configuration.

This fixes two things

1. The error no longer occurs with default "build"
2. (First time) users that follow the readme with building from source are not detered from using the engine (since they see an error and building is slow due to tests).

Note: You can easilly fix this problem by clicking the "Mixed Platforms" dropdown -> New -> Clone "Mixed Platforms" change to "Tests" -> Close.
Edit "Mixed Platforms" and uncheck all project containing the word "Test.

Screenshots
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Log and callstacks
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Additional context
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Other engine's like the unreal engine also don't force their dev users to build their unit tests.

Start with README.md's "Building from source" instructions and build/Stride.sln. Inspect Stride.VisualStudio.Package.Tests.csproj, especially the Exec command for Stride.Core.Tasks.exe, and review how test projects are included in the default solution build. Done means opening the solution and running the default build without that error or unnecessary test-project build time.