* wire-api: Add TeamFeatureConferenceCalling

* galley-types: add default flag & permissions

* Add getFeatureStatusWithDefaultConfig

* setFeatureStatusNoConfig: Add push event hook

* Add migration for feature flags

* implement galley endpoints

* internal endpoints and fix

* extend test

* add simple test

* correct a comment

* merge event testing into simple flag

* update CHANGELOG

* update schema

* update galley.integration.yaml for doc

* galley-types: fix unit test

* Add docs to config options

* fix typo