- #4914
- test service ref MSBuild tasks
- add `MockBuildEngine` class to support tests where a task logs
- correct an incredibly minor product issue about logging errors for `@(OpenApiProjectReference)` items
- set `%(SourceProject)` metadata and use it when logging
- add test project that builds and can be tested in the future
- start of #4914 and #4896
- make infrastructure more accessible to these projects
- update list of projects
- run `.\eng\scripts\GenerateProjectList.ps1`