* Remove obsolete targets, properties, and scripts
* Replace IsProductComponent with IsShipping
* Undo bad merge to version.props
* Update documentation, and put workarounds into a common file
* Replace usages of RepositoryRoot with RepoRoot
* Remove API baselines
* Remove unnecessary restore feeds and split workarounds into two files
* Enable PR checks on all branches, and disable autocancel\n\nCommit migrated from f41cfded3c
The issue is that the hosted service would not be registered if other
hosted services are present. The fix is to use TryAddEnumble so that we
allow multipled `IHostedService`s but not multiple instances of
the same type.
\n\nCommit migrated from a2f28147c2
Nate McMaster
Ryan Brandenburg
Nate McMaster
Ryan Nowak