refactoring
recreated new stand template window to not subclass Gtk.Dialog.
- Consolidated UI and added a button for drawing the new stand shape
project file and generated code changes for UI
added enum flag for Backdrop changes
additional project changes to csproj
refactored new stand window
broke out drawing of backdrop and grid into separate methods
replaced metadata label with statusbar
- added progressbar (hidden for now)
- made the name cell of Stand Template editable for renaming
- refactored after new stand template window refactoring
- added button to change backdrop
- New Map button now refreshes the UI
- added switch case for backdrop change
- moved loading of stand template to its own method
- refactored the way main UI was being built
Merge branch 'final_ui_test' of https://github.com/thecisguy/map-my-garage-sale into final_ui_test