Pull current waypoint list from server

[shawnhanna]

Add an option to get current waypoint list from server (sort of a "load from boat" instead of "load from file")

I'd say this is one of my most desired features to have since we have a significant number of crashes at the moment

Use Case 1: App crashes, need to load the last points that we sent so we can see the path and make adjustments and see where the boat is going next
Use Case 2: Started making new set of waypoints, made a mistake, want to see the current path #65
Use Case 3: Made modifications to waypoints #63

[jjblum]

This is a good idea. There is already a getWaypoints core lib function available. If we run this right when a boat connects, we could have the tablet display the waypoints it is running. Note that we need to use the version of the server that increments an index for the next waypoint and rather than calling startWaypoints() again but with only the remaining waypoints.