Patch Notes:

* Made restricted blocks extendable via a method in BlockConfig
* Seperate overlay texture loading on icon texture loading
* The shipyard repair and reinforcement will have to be finished later as part of a fleet rework. For now, the shipyards and shops on ships by itself is good enough.
* re-add hooks from steam update for the cannon hit projectile listener
* Re-implement CannonProjectileHitListener
* add handleAfterAlways hook
* shadow glsl ATI compatibility
* add break statements to prevent nullpointer for BlockPublicPermissionEvent
* Several modding improvements and fixes
* Remove repairs section from shop panel for ships

Thanks to the community, specifically Jake, Ir0nsight, Garret for this update, and everyone else working on it and testing.