Fixed the data structures. branchmine now works, but it doesn't return yet.

getting exception, trying to index nil at line 67 of astar
moved config up to top. fixed finished script.
still gets stuck at the end of a run. need to find a way to test this fail quickly.
cleaned up some of the scanning code.
seems to be working. thinking about ignoring the chest check, and just doing s suck on every block before it breaks it.
still gets stuck sometimes.
still not working properly. hangs on bedrock.