Ensure warnings have been accounted for.

Extract additional platform-specific imports to basic compatibility
header.

Properly declare shims for macOS.

Only free memory that are dynamically allocated.

Configure environment for Linux.

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

Unify variables across the project.

Make colored console output work in Windows.

Fix CMake lib dependencies for crypto/SSL. Also ensure websockets work on macOS for both client and server.