Encoding monster attributes in their genome

⚠️ Work in progress ⚠️

This is the bare minimum, I'm focusing on building the game before doing gene mapping more seriously.

Genes are encoded on a uint256 (256 bits).

First 16 bits are encoding the body type

 xxxx xxxx xxxx xxxx

bin: 0000 0000 0000 0001 hex: 0 0 0 1

color pattern, eyes, mouth, ears,