Addon Editor 2022-02-25

Fixed issue with crashing if targeting the wrong thing

Fixed the class name display in the game

Also fixed removing an item from an addon and renamed the button

Made multiple fixes to the gump, targeting, Delete check

Also realized there was an error that was preventing anything items from being added to the Addon and causing a crash.

All updates were made to the gump, AddOn Editor.cs

Gump now closes, yay!

- Added Basic Addon: a single tile addon you can add to
-- New button on the Editor gump to create one
- Added item that when double-clicked will open the Addon Editor gump ( for those who prefer to use an item over commands )