Fixed pole climbing issues, and improved how pups enter tunnels.

Optimized code, improved behavior. Slight issues in regards to pole climbing.

Improved behavior when entering tunnels on poles, and added slugpup safari support

Expanded what kinds of jumps pups can do.

Overhauled movement system, should be more reliable.

Allowed pups to use secret shortcuts, and improved how pups enter shortcuts in general. Significantly improved corridor navigation.

Improved how pups handle beams