Automerge and Autobranching

[mahalakshme]

Need:

• Soon we are gonna start working on next release, and hence this will be needed.
• Frequently we face issues where we forgot to merge the branches of some repos etc.,, or we merge only with master and not to all branches belonging to later releases. Currently to remember this and do it is complex.

Approach:

Automate to avoid human errors. Also the merge conflicts might be less considering the merge will be done on an ongoing basis.

AC:

• Automatically create branches in all repos
• Automatically merge the dependent branches based on declaration from a JSON file. Fail the build when merge conflicts arise.