This adds an update sub command to gbm release.
For now it checks to see if the GBM PR is current with the GB release PR.
If it isn't it will update and run all the bundle steps.
This PR also includes a fair amount of refactoring to allow for updating existing release PRs
This adds an
update
sub command togbm release
. For now it checks to see if the GBM PR is current with the GB release PR. If it isn't it will update and run all the bundle steps.This PR also includes a fair amount of refactoring to allow for updating existing release PRs