Unified Build Controls

[mmitche]

Description

Update the unified build control set to remove source-build specificity and enable Unified Build

General Work

• Design for unified behavior controls #2974
• Unified Build Controls Work Breakdown #3932
• Introduce DotNetBuild control #3937
• Introduce DotNetBuildPhase control #3938
• Introduce DotNetBuildInnerRepo control #3939
• Introduce DotNetBuildOrchestrator control #3940
• Introduce DotNetBuildOuterRepo control #3941
• Remove remaining usages of existing DotNetBuildOffline switch in inner builds #3942
• Remove DotNetBuildOffline switch at the outer repo build level #3943
• Add new DotNetBuildOffline switch at the orchestrator level #3944
• Introduce DotNetBuildSourceOnly control #3945
• Introduce DotNetBuildSkipTests control #3946
• Introduce ExcludeFromDotNetBuild control #3947
• Introduce output controls into arcade if necessary #3961
• Introduce ExcludeFromSourceOnlyBuild control #3948
• Update existing control usages in repository inner builds. #3949
• Remove old controls usages in outer build invocations #3950
• Remove old control usages in orchestrator. #3951
• Introduce control into root build scripts to disable building tests #4008
• Remove remaining usages of old controls in arcade #4182

T-Shirt Size: Large

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[mmitche]

/cc @MichaelSimons @richlander @crummel

[mmitche]

Part of #2911