Build the swui library for non-DESKTOP platforms, too. Handle fallout
for !HAVE_FEATURE_DBCONNECTIVITY and !HAVE_FEATURE_AVMEDIA (both of
which features we for now don't want to bother with in the iOS app).

Make VclAbstractDialogFactory::Create() do its thing also on
non-DESKTOP.

This commit just causes more code to be compiled for the non-DESKTOP
case, dialogs in general surely don't actually work yet in the iOS
app. For instance:

vcl/source/window/builder.cxx:2060: probably need to implement sfxlo-CustomPropertiesControl or add a makesfxlo-CustomPropertiesControl function

Change-Id: I579efba605f519dcbf407b675be88c7c6ee0f19b
Reviewed-on: https://gerrit.libreoffice.org/62794
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>