added Astar
sadf
added files
finished astar
Delete AStarSearch.cpp
Delete AStarSearch.h
syntax
Merge branch 'master' of https://github.com/lyandrew/maze_search
Merge branch 'master' of https://github.com/hempywh/maze_search

Conflicts:
	BFSsearch.cpp
	DFSsearch.cpp