v0.6.2 Dependency manager (mainly for CUDA-enabled PyTorch)

This version includes a Dependencies tab to allow an easy re-installation of the CUDA-enabled PyTorch as well as any other packages via pip. This is in responding to #40.

Small changes:

• Removed the unnecessary scikit-learn package
• Renamed parameters: shifts -> positions, quaternions -> rotations

Full Changelog: v0.6.1...v0.6.2

Backward compatibility still holds