Figure out a way to make yearly configurations more modular

[nwalters512]

Currently, year-specific changes are pretty heavily integrated into the actual WildRank framework itself. This makes it difficult for other teams to use this project and customize it to their liking; any time they'd pull our changes (features, bug fixes, etc) into their fork, any year-specific stuff would come right along with it and do bad things.

We need to modularize things more. Perhaps we can use Gradle modules to provide all the year-specific stuff and just leave the general framework in this repository?