::GetAppData replaced with SfxApplication::GetModule
that now returns SfxModule*

SfxModule no longer registers self for ownership
instead it is now registered using SfxApplication::SetModule

Change-Id: Ifbbe1b2b4c5122da8e643b7926d47878d116c6c8
Reviewed-on: https://gerrit.libreoffice.org/26914Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>