[keycloak-dev] session.userLocalStorage() needs to be fronted by cache

I think I made a mistake when User Storage Providers are importing into local cache. Currently KeycloakSession.userLocalStorage() does not have a cache in front of it. The LDAP and Kerberos providers call this to determine if the user has been imported or not. The thing is, the user may already be cached and I think there is a possibility of updating the user (on demand resync) and getting stale cache entries. Also, we don't want a database hit every time there is validation happening. So, I'm going to figure out a way to have the cache front the userLocalStorage() method too like we do for userStorage(). This will require some refactoring of UserCacheSession. Not sure if that will conflict with Marek's work. Bill