Improve object editor with horrible performance, missing icons and wrong ordering

[tdauth]

Improvements:

• Show the icons and folder icons (maybe wrong BLP plugin).
• Fix ordering Custom abilities after Standard abilities.
• Fix ordering of races, heroes and items etc. Look for some editor settings files for those category orderings.
• Improve the horrible performance when clicking on a tab, Destructables and Doodads lead to segmentation faults, and clicking on specific objects.
• Add missing new/selection dialogs for items.
• Add new Destructible, Doodad, ability support etc.