Worked on global tile rankings

Created one method that gives the overall importance for the current player to be on that tile. It requires further tuning but this will simplify the code for movement.

To do:
  - Determine if a player can save tile without using sandbags (need to know # actions left)
  - Detect condition where fly cards can be used to gather players and leave island
  - Use Pilot fly command and navigator move command

Win rate: 3/50 or 6%