These classes are only used by the presenter console
implementation in sd/source/console/, so move the
classes there as well, which implies moving them
from Library_sd to Library_sdui and no longer having
to have PresenterHelper.hxx in an sd-wide internal
include directory and there is no more need for
PresenterHelper to be SD_DLLPUBLIC.
In other words: Make clear these are implementation
details of the presenter console, and not used
elsewhere.
Change-Id: Ica2a516215344360f647c121b5f0942a67f54ea3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208744
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins