Packet Core in general when mixed inside a class:
  - allow the class to act as a reactor
  - should start a server on specified port
  - should let clients connect to the server
  - should be able to connect to external servers
  - should be able to read data from clients when socket is ready
  - should be able to write data to clients when socket is ready for write
  - should invoke receive_data method data is receieved from clients
  - should invoke post_init when client connects
  - should invoke unbind when a client disconnects
  - should invoke connection_completed when connection to external server is connected.
  - should check for ready timers on each iteration
  - should run proper timer on each iteration.
  - should implmenet reconnect method for allowing lost external connections to be reconnected.