windowSizeLoop does not access any variables that are altered during a
reconnect. therefore it can continue to run uninterrupted

keepalive takes care of terminating stale connections so we do not have to
implement a ping loop.

inputloop now accesses player reference. no input loop for a player
must be running when that player is being modified

the channel is NOT replaced on reconnection,
so the stub must handle the channel properly,
that is not leave poison pills for the the actual
player to choke on

parse piece definitions from files
render randomly drawn piece on agents turn
board not writable yet

lobby stub allow a hardcoded player to 'reconnect' into the single running game