[APPHELP][APPHELP_APITEST] Add some apphelp GUID helper functions + tests to be used...
drwxr-xr-x - reactos
drwxr-xr-x - rosapps
drwxr-xr-x - rossubsys
drwxr-xr-x - rostests
drwxr-xr-x - wallpapers