P0-B6: Part 1309: Debugging, Improvements

After extensive work, the navigation changes have been mostly implemented.

I still have a lot of testing to do, but the core mechanics are mostly working.

The player can now navigate to any position or stellar object in world space, and persistently. IE, the players position in the world and on all of the maps and guis is consistent between runs.

There are still some issues with the radii of stellar objects not being correct on the guis, but this is more minor.

Next, I want to do some more testing, and then add more features and improvements to the guis and space sim.