move the fax dialog from padmin to vcl

now we don't have to dlopen padmin to get it
so we can drop that complicated stuff and don't need
to be unx only

Change-Id: I0e585b05a4ecf2a1c8a3ac5275185d81ada518e5
convert CUPS password dialog to .ui

Change-Id: Ibdf4da93848e2c8b46f89cbfba4c282291f0c744
move the cups password dialog from padmin to vcl

now we don't have to dlopen padmin to get it so we can drop that complicated
stuff.

Change-Id: I2f01bd104aae8f17ada9a445da653b441a927c70
move remaining padmin dialogs into vcl

and so padmin is no more

Change-Id: I554cefa8b38581daad8a78bafa167448b0a0ef61