POI Work, Preliminary Route Support

The POI feature now has edit support in both the current system and galaxy views. You can edit a POI by double clicking the notes. If you change a note and then click anywhere else, it will save. You can press the esc key to abort and edit and restore the original text.

I have also started commander route data, and am experimenting with a 3D galaxy map. It currently works, but due to the the sheer size of the galaxy, the output is less than useful without some tweaks. I will iterate on this in the coming weeks, alongside the offense panel work.