Building GraphLoader class

extracting graph data from a input file
Add exampleInput.txt
GraphLoader loading example
Getters and setters for class Node
Graph undirected
maxNeighbours

Node can now have maximum number of nieghbours
JUnit test case for class Graph updated
Unnecessary functions removed.
Zmieniony sposob wyswietlania, dodane grafiki

brakuje jeszcze żeby nasz graf jakos sobie odbieral info o tych wezlach
i ustawial je w taki sam sposob
Merge