Renamed Invoke to Invoke Event (uses EventSystem).
Added Invoke Method command contributed by bigdiddy on forum.
Made some minor changes to contrbuted code:
1. Show Inherited is now on it’s own line in inspector
2. Removed Init on Awake option - always inits on awake
3. Added a Delay property to be consistent with Invoke Event command
Added an integration test for both Invoke Event and Invoke Method