Reynolds wander isn't working very well for us - boats seem to bunch up on the same map edges
Rewrote all of the boat wander state:
- Now pick macro and micro directions
- Macro is a fixed target point (within deepsea bounds or in random direction)
- Micro is the same Reynolds stuff but done simpler
- Combine them together for a bit of a better approach
Boats now traverse around the whole of the deepsea bounds rather than sticking to an edge. Much cleaner and more reliable