* Add database migrations for merge whitelist

* Add merge whitelist settings for protected branches

* Add checks for merge whitelists

* Reorder migrations, skip errors if running migration again

* Rename migration file names to match migration version

* Add note about ingored error

* improve protected branch to add whitelist support

* fix lint

* fix style check

* fix tests

* fix description on UI and import

* fix test

* bug fixed

* fix tests and languages

* move isSliceInt64Eq to util pkg; improve function names & typo