Added new methods on IdentityBuilder
Stop using navigation properties in UserStore

Will follow up in a different PR fixup/loading of navigation properties
Remove all navigation property usage in EF store
Revert "Remove all navigation property usage in EF store"

This reverts commit 47d42e10aabd4eaffa26c518577e417fcdecbfb0.
Remove all navigation usage
Cleanup
Cleanup
Remove GetUser helper
Remove navigation properties from db context and role store