Add RoslynAnalyzer AzDo task to PS builds #2279
Description
Add RoslynAnalyzer AzDo task to PS builds.
Roslyn analyzer is currently enabled via EnableNETAnalyzers in the csproj. This is helpful for running analysis on build and works well assuming no one sets EnableNETAnalyzers to false. We should add a RoslynAnalyzer AzDo task to ensure all builds are analyzed even when EnableNETAnalyzers is accidentally set false in the csproj.