LinkedNode: added
TreeLinkedNode: added
LinkedList: added
SimpleLinkedNode: added
SimpleTreeLinkedNode: added
SalesmanAlgo: implemented
SimpleLinkedList: added
SimpleLinkedNode: added
SimpleTreeLinkedNode: added
SalesmanAlgo: optimized space usage
removed: Node, SimpleNode
SalesmanAlgoTwo: added
City: added getIndex()
SimpleCity: implemented getIndex()
SalesmanAlgoTwo: implemented main loops
SalesmanAlgoTwo: optimised memory usage
SalesmanAlgo: added countTree