Good coding practices

This document is an effort to create a coding standard and by consequence a global library that can be used on SNES homebrew and ROM hacking. The objective is creating a standard that lets coders maintain existing code with less difficulty, promote a clean and easy-to-understand code, standardize conventions and promote coding agility for faster results and less time thinking on how to code.

Feel free to edit with your own thoughts, the idea is mixing everyone opinions until we get into a consensus. Further discussion can be made on the #homebrew channel of the SnesLab Discord: https://discord.gg/dXzrk5bX