Map Cache Rework

[fogsaturate]

This PR fixes the broken map caching that was implemented in game. I also optimized it a little bit more by adding date modified checks before the hash checks

Process of Map Caching goes like this

• Check if map exists in the database
  • If exists, check for last modified (If it matches, then skip the map)
  • If exists, check for map hash (If it matches, then skip the map)
• If it doesn't exist in the database, parse it, then store the modified and hash into the database

The reason I am drafting this PR for now is because it still has bugs, PLUS it permanently alters your map folder.

So if you use this build of Rhythia, please be sure to BACK UP YOUR MAPS FOLDER!!!