Make build instructions concise.

Document project setup correctly.

Add second character.

Specify command for building in Windows without depending on the IDE.

Configure environment for Linux.

Server runs ok, the game runs but with no window...

Implement gamepad logic for macOS.

Add compatibility for macOS and *NIX files

TODO: inspect building of dependencies

Websockets server is for game networking.

Make CMake load dependencies relative to project directory.