Update before computer backup

Fixed VAE bugs

Initial Variational Autoencoder design

Integrated experience buffer class into main.py

More integration with main.py

More integration with original project.

Integrated DDQN class with original project.

Minor typo fixes

Added separate ddqn class file, along with minor improvements

Added simple experience buffer class.

Adding initial proof of concept, ready to be cleaned up and added to.

Initial commit