Tournament Arc

This was done for 7DRL 2022.

Gather together your monstrous comrades and compete in turn-based battles.

A new set of monsters, type-relations, and a new world are generated in each run.

I reused a bunch of code from a previous project. Basically, most of the roguelike machinery is from a previous game, and all the battle systems and monsters, and npcs etc etc are from this past week. Assume that all source code is GPL3 or whatever. None of it is particularly beautiful programming but basically lift whatever you want.

The homie CRS wrote a bunch of the monster types in mon_types.py.