GPS plotter

A separate window will be implemented to plot the GPS data points, which the user can open from the menubar at the top of the application.

Steps:

• Extract GPS data.
  • Extract RT130 data
  • Extract Q330 data
  • Extract Centaur data
  • Extract Pegasus data
• Automatically decide how to extract GPS data based on data type
• Create GPS plot dialog
• Connect GPS plot dialog to main window
• Style GPS plot dialog