Remove getClientDetails and getUserDetails

[bshaffer]

Consider removing these methods from the interface and replace them with the explicit calls being asked for. For instance, the methods should be getUserId, getRedirectUri, etc. The querying can then be handled internally however the author of the storage class seels best.

[frequenc1]

I really like the idea of pulling this out. We are having issues because we are using multiple instances of redis as our data storage (user credentials, admin credentails, token storage), Our Storage Class is getting way to army knife so anything that pulls these kinda of methods out are great. Thanks!