Feature: Configurable "No free progression" flags, 3 new esper locations

[kielbasiago]

This is currently very volatile with character gating, will add example flags to break it soon

Overview

Consolidated a lot of data around checks into one spot (checks.py)
Refactored a ton of code to allow for forcing any check to reward anything

Notable Files

• checks.py is where check definitions are now kept
• event/event.py where the overrides take place

Check Changes

• Narshe weapon shop supports 2 esper choices now (will probably set this back to item but it's stable)
• Lone wolf can offer an esper now i.e. "You'll never get this 'Bahamut'!"
• There can now be a magicite at the top of Fanatics Tower
• Kefka at narshe is a Character/Esper guaranteed now by default

Flags

• --force-item-rewards id1,id2,etc. force an item reward on any number of checks in the game
• --force-esper-rewards id1,id2,etc. force an esper reward on any checks in the game
• --force-esper-item-rewards id1,id2,etc. force an esper or item reward on any checks in the game

Extra

I made a tool to allow selecting these ids https://tracker.kielbasiago.com/checks