Implement a help job
Implement a help job

This utility, when called at the end of a groovy file, will add a job to the branch which prints a help message when '@dotnet-bot help' is commented in the PR.

mmitche/dotnet-ci,tannergooding/dotnet-ci,mmitche/dotnet-ci,tannergooding/dotnet-ci,dotnet/dotnet-ci,dotnet/dotnet-ci