Made the Message infrastructure and the TCPListener. Specific Message classes are not ready yet.
marcocg: Initial structure of miner main loop as well as full init method. All *considered* pending issues are marked as TODO or DEBUG in code comments.
marcocg - Following features introduced in this checkin:
  *Main structure of the miner loop established.
  *Logic and code to start the TCPListener and Web Server threads is present.
  *Init method fully coded.
  *All *considered* pending issues are marked as TODO or DEBUG.
 
Current clean build.