[Windows] Set the System.AppUserModel.ID on the shortcut
[Windows] Set the System.AppUserModel.ID on the shortcut

It's required to get the notifications working and documented
by Microsoft (this is valid only here because Crosswalk is not
an UWP app).

crosswalk-project/crosswalk-app-tools,baleboy/crosswalk-app-tools,baleboy/crosswalk-app-tools,baleboy/crosswalk-app-tools,crosswalk-project/crosswalk-app-tools,crosswalk-project/crosswalk-app-tools