Training Module and Env Setup

[caymansimpson]

Takes data from Data Processor, creates inputs (eg embeds battles), values and trains models w/ parameters. Needs to scale to ESCHER.

Need to redefine the poke-env environment API (largest thing here)

Also add tests to understand if there any abnormally large features

[caymansimpson]

Also I need to add back teampreview as a parameter (and test teampreview embedding), with documentation about what I don’t embed

also clip large parameters and normalize in embedder

Also add battle representation of last 10 turns

[caymansimpson]

Set up a DQN example