e-NABLE Phoenix Hand v2

This is a remix of the original e-NABLE Phoenix hand by Jason Bryant with replacement components by John Diamond, Scott Darrow and Andreas Bastian. A full assembly guide is included. The changes from the original are as follows:

* Gauntlet - Original fully 3D printed version replaced with a thermoformed equivalent (lighter, stronger, uses less filament, quicker to print and can be adjusted to better fit the forearm)
* Gripper box components - Whippletree doesn't require tying to the swivel p