Game logging system

[ForNeVeR]

Eventually, we won't be able to log into the console, because normal game distribution will stop opening the console on Windows.

Also, WASM distributions will only support logging to the browser console; I'm not sure if it'll properly work by default or not.

So, we'll have to introduce a logging system (probably based on Microsoft's logger abstractions).

While we are at it, check if it's possible to pipe Raylib's logs to our logging system.

Look for // TODO[#105] to find places where logging would be required.