* Add AuthNSvc reload handling
* Working, need to add test
* Remove commented out code
* Add Reload implementation to connectors
* Align and add tests, refactor
* Add more tests, linting
* Add extra checks + tests to oauth client
* Clean up based on reviews
* Move config instantiation into newSocialBase
* Use specific error
* merge with system settings before storing them in the db
* add base for validating sso settings
* add unit tests for sso settings validation
* call Reload() from sso service upsert()
* remove actual validation because it was moved in a separate pr
* use constant to fix lint error
* check if provider is configurable in service Upsert() method
* add unit tests for update provider settings api method
* fix lint error
* inital changes, db migration
* changes
* Implement basic GetAll, Delete
* Add first batch of tests
* Add more tests
* Add service tests for GetForProvider, List
* Update http_server.go + wire.go
* Lint + update fixed role
* Update CODEOWNERS
* Change API init
* Change roles, rename
* Review with @kalleep
* Revert a mistakenly changed part
* Updates based on @dmihai 's feedback
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Co-authored-by: Karl Persson <kalle.persson@grafana.com>