* Add metrics and segments to entity store type

* Add "sensitive" field visibility type

* Add missing properties to MLv1 metadata classes

* Handle metrics and segments in `createEntitiesState`

* Convert metadata selector file to TypeScript

* Fix type errors

* Remove not used selectors

* Don't export private selectors

* Remove `getDatabases` selector

* Remove `getFields` selectors

* Fix types

* Use normalized entity types in metadata selectors