Adds new config option `internalChecksAsSuccess`, defaulting to `false`.

Closes #7800

BREAKING CHANGE: Internal checks such as `renovate/stability-days` will no longer count as passing/green, meaning that actions such as `automerge` won't
occur if the only checks are Renovate internal ones. Set `internalChecksAsSuccess=true` to restore existing behavior.

Co-authored-by: Rhys Arkins <rhys@arkins.net>
Co-authored-by: Sebastian Poxhofer <secustor@users.noreply.github.com>
Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* rename

* rename to isBranchBehindBase

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* refactor(config): strict null checks

* chore: fix test

Moves datasource, manager, platform and versioning code from lib/ into new lib/modules/

BREAKING CHANGE: External tools must update paths to datasource, manager, platform and versioning

Co-authored-by: Rhys Arkins <rhys@arkins.net>

* refactor(platform): Simplify comment deletion API

* Fix comment id types

Co-authored-by: Rhys Arkins <rhys@arkins.net>

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Rhys Arkins <rhys@arkins.net>
Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* feat(config): migrate requiredStatusChecks to ignoreTests

* fix(config): restore order of props

* feat(config): add applyMigrations function

* feat(platform): check ignoreTests param in worker

* feat(config): rename getBranchStatus to resolveBranchStatus

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>
Co-authored-by: Rhys Arkins <rhys@arkins.net>

Co-authored-by: Rhys Arkins <rhys@arkins.net>