[Built-in analyzer] Multiple projects share the same obj/bin

[Ladi Prosek]

Background

This issue tracks one of the BuildCheck analyzers we would like to ship in-box with MSBuild.

Goal

Implement an analyzer with the following rule: No two projects should have the same OutputPath or IntermediateOutputPath.

Notes

Using a shared directory for outputs or intermediates often leads to file access issues and non-deterministic builds.