Update to 1.33

This update makes customization options a lot more accessible and nerfs some very annoying things.

This update is not compatible with seeds for 1.32.

• Grass critters no longer push you, reduced their HP to 10.
• Fragile and Doggy gimmicks are not rolled for first few floors.
• Reduced mob modifier for Treasure gimmick from 3x to 2x.
• Gimmicks do not carry over to depth 10.
• Water now always generates in bottom half of stage.
• Increased Improved Map System's size by roughly 4x.
• Removed mouse scrolling from IMS.
• Added tileset and gimmick showcase at start of the level.
• Renamed certain stages.
• config.ini is replaced with config.json.
• Added Configuration screen to pause menu.
• Added character select screen, it's accessible within Configuration screen.
• seed2.txt is deprecated.