Move swaths of code into modules
Move swaths of code into modules

* Move swaths of code into modules

* Move more variables into the modules

* Combine `graphics` and `shapeMath` modules into `canvas`.

* Create userInterface module.

* Minor fixups

lythien/lythienbot,j-c-m/Slither.io-bot,ErmiyaEskandary/slither.io-bot,AdrianDroid/Slither.io-bot,ChadSki/Slither.io-bot,alexzeit/Slither.io-bot