dim3 Engine 3.0

Dim3 is a free and open-source engine for creating 3D games.
dim3 Animator features :
- hand weapons are now drawn in the same 3D space as all other models
- particles on projectile animations attached to bones auto-dispose when projectile is disposed
- shadows don't cull with models (this won't work on projections)
- background for better metrics on smaller devices