The format of the yaml file is as follows:
---
race_name: ...,
name_fmt: ...,
namegen_class: ...,
char: ...,
color: (r,g,b),
spawn_chance: ..., # higher means more likely to spawn
level_distance: ..., # not yet supported
hp:...,
defense:...,
power:...,
ai_class: name.of.class,