Crate fast_server

This create implements the important functions, needed to run a minecraft server. This includes:

• Server: object able to handle the world and enable communication between players
• Server::start(): static function that makes it easy to listen to a port and send player connections to their seperate Thread using ConnectionHandler
• ConnectionHandler: used to handle the player socket

Modules

• config
  Module that specifies structs and functions to easily load and store server configurations
• connection_handler
  Module that specifies structs and functions used to handle player sockets
• player
  Module that specifies player specific structs
• server
  Module that specifies server specific data and functions