Doesn't provide a way to add/delete nodes of paths yet.
Differential Revision: https://code.wildfiregames.com/D348
Patch By: Vladislav
This was SVN commit r19427.
Based on existing code that was still around from an old(not working)
implementation.
Supports basic control from trigger scirpts (queue, start and stop
camera paths) and works in multiplayer.
This was SVN commit r17594.