feat: add fvm manager (#14370)

* feat(manager/fvm): add fvm manager

* fix(manager/fvm): add to check for type of version value

* style: update string type check

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

* feat: update fvm manager

* chore: add fvm folder to tsconfig.strict.json

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