Lua Systems now reload
Added remove rigid body to bullet_manager
Changed entity indexing to match lua default
Added optional removal for component.
Removal for collider
removal for light component
Removal for Mesh component
Removal for Rigid Body component
Added optional removal for systems
Remove Bullet_Debug_Draw_System
Added deepcopy for lua component

This ensures that there is no odd shared reference behavior.

Note memory leak. Currently I do not unref component_ref due to
segfault.
Moved creation of entities to manager from main.
Actually load deep copy.
init from lua returns a ref to the entities now
Move call to manager:resume to the end

resume will break out and not allow the keyboard variable to be set.
Thus being stuck in pause.
Function to reset the system.

Delete all entities and systems.
Don't let camera>near_clip be zero

This is a quick fix to a a bug where the update from lua function is not
working properly and only setting near_clip to zero.
Now updating without reloading the application.