added class target manager which will be responsible for managing
targets
this is a better approach then keeping the target in the connection
manager in case of a connection loss
added method in PathFinder to set target as point
TargetManager is initialised in Main
ConnectionManager initialises itself again if the connection is
terminated and there are more targets
added some System.outs and some smaller changes
referring the resetting of the connection if it is terminated by the NXT
while there are still more targets
the first tests with the new communication worked - I will still work on
this