pg-game setup

• Everything gets built into a file called bundle.js which adds a function pg() to the window, which is called in index.html. If you open that html file, everything should run once it's built.
• npm install to get the dev dependencies
• npm run build within the directory to persistently build while editing
• I use python -m SimpleHTTPServer 8000 and hit localhost:8000 to serve it up easily