Tracking Station Evolved v2.0

• Add drag-and-drop re-ordering of vessel group elements

  • Use the drag handle on the right side of each top-level group

• Add sort options

  • Sort by vessel launch time (stock behavior)
  • Sort by vessel name
  • Sort by vessel type or orbited body
  • Toggle ascending or descending order

• All sort options and order data are persistent for each save file

• Fix bug related to drawing the celestial body icons

• Fix bug when displaying which vessel in the list is selected