Placeholder directories

After a bit of playing around with Python
JSON libraries I've settled on a solution
for publishing characters: jsonpickle

It's a simple library that lets me encode and
decode Python objects as JSON. Along with the
regular json library, it is pretty easy to
save generated characters and other content.

This commit begins the process of setting up the
proper directory structure. Every game will have
its own engine. For now there is only the default;
'Engine Builder' functionality is still some ways
off.

Every game will also have its own data directories
for things like characters, scenario, battles, and
other content.