#35 Correct PathFinder interface
#36 Correct TreeFinder interface
#28 Bellman-Ford Algorithm Implementation

Stage 1.
#29 Boruvka Algorithm Implementation

Stage 1.
#30 Kruskal Algorithm Implementation.

Stage 1.
#26 Prim Algorithm Implementation

Stage 1.
#27 Dijkstra Algorithm Implementation

Stage 1.
Update tests.

Add counter incrementation.
#33 Bellman-Ford Test Implementation

Stage 1.
#32 Dijkstra Test Implementation

Stage 1.
#31 Prim Test Implementation

Stage 1.
#34 Boruvka Test Implementation

Stage 1.
#30 Kruskal Test Implementation

Stage 1.