Added generator for adding session columns to oauth tokens.
Saving session_id, last_used_at, and session expiry when creating token. Added migration to dummy to ensure tests are green.
Added session id to the query for access token lookup.
Modified migration generator for sessions to add session id to grants as well.
Reapplied the migration to the dummy app for spec to pass.
Saving session id for access grant. Passing grant's session id to token when creating new. Returning existing token for existing session.
Fixed the spec to accomodate session saving in grants and tokens.