Added new art and sound assets
Items spawn attached to monsters and drop when killed
Merge branch 'items' into combined

Conflicts:
	UnityProject/Assets/GenericBehaviors/Damagable.cs
Fixed blob damage, it was missing gem script
Merge remote-tracking branch 'origin/NewArtMartin' into combined

Conflicts:
	UnityProject/Assets/Scenes/MainScene.unity
Fix broken merge
Added item collection and stat totals