Ensure every config-backed subsystem can serialize/deserialize config in
a single consistent manner.

Add templates for config item types.

Also updated server's config to use the global config module.

Remove symlinks and make codebase use common modules instead.

Unify config loading in net and video subsystems.

Make sure to have help messages for both the game and the server.

Make the member name generic to accommodate other potential
implementations beyond Websockets.

Provide the facility for the player to retry a failed connection a
certain number of times.

Database will be used for authentication.

Implement the sending of input events to the websocket server.