and SmSymDefineDialog

There's a whole bunch of interrelated stuff which needs to work at the same
time.

add menu support, keyboard support, better mouse support,
a gtk scrollable adaptor to support pseudo scrolling drawing bodge,
plugable uitest support for custom widgets, plugable a11y support
for custom widgets via the existing atk_object_wrapper_new wrapper
for XAccessible

In this specific case, change SvxCharacterMap from something that has an
internal scrollbar to a scrolledwindow where the scrollbar is external, which
drops the need for the a11y impl of SvxCharacterMap to emulate being a scrolled
window and internal table and just needs the table a11y impl

Change-Id: Ia2743d6958021c525a1900154dcbb69ae33fc400
Reviewed-on: https://gerrit.libreoffice.org/52084Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>