GS deal with GS crash, GS deal with RM crash

GS deal with GS crash, GS deal with RM crash

Early version of Fault tolerance checks

Communication between GS, GS and RM, handle some crashes

Able to receive/upload jobs

RM is able to receive jobs from Job Sender and assign jobs to free Nodes. If no Nodes are free, then RM hand in jobs to GS. When GS assign the job back, RM must accept it. RM run Nodes with Thread