Add missing stuff and test it in a small map to avoid the change event limit bug or fix the bug before

[tdauth]

• All walk, attack, death animations and sounds: Vehicles, structures, heroes, landmines etc. -Test ressurrection with structures, landmines and vehicles!
• Fix projectile start position for tanks.
• Fix inverting item buying and usage.
• Try to invert spells/custom spells by extracting their effects. For example, when a healing potion is used we could check which ability was cast and at least invert its spell effect, animation etc. etc. etc.: ChangeEventCastAbility.
• Make sure when an item is bought that it is added as item to the objects.
• Add inversion support for stacking items/moving items between slots/selling items/buying items etc. etc. invert gold sound and effect as well.