Update to Cellular Automata Sim: prototype v3

Update to allow editing of rulesets. Now all generic 2-state cellular automata can be simulated :D

Everything runs in the browser and can be controlled by mouse or keyboard:

https://alexmulkerrin.itch.io/cellular-automata-sim

Any feedback about the program or presentation would be most appreciated as I am planning on giving it a final polish before upgrading from prototype status :)