Add feature to view "Send to" folder

- Rename Thor_Tool_Repository_FoxBin2PrgCreateShortcuts.PRG to match
the name used by the Thor repository, and add a method to the shortcut
engine to view the user "Send to" folder in Windows Explorer.
- Add a button to the Thor_Tool_FoxBin2PrgCreateShortcuts form to view
the user "Send to" folder in Windows Explorer.