[progress] add helper functions to hex.elm: nearbyDirections (the adjacent 2 directions to chosen direction) findDirection (if two positions are colinear, find the direction from 1 to the other)
[progress] add helper functions to hex.elm:
nearbyDirections (the adjacent 2 directions to chosen direction)
findDirection (if two positions are colinear, find the direction from 1 to the other)

danmane/abalone,danmane/abalone,danmane/abalone,danmane/abalone,danmane/abalone,danmane/abalone