make them all the same and share std::locales more

various OModuleClient, etc, classes go away

Change-Id: I7e3ff01a69332eeacd22e3078f66a60318de62d5
Reviewed-on: https://gerrit.libreoffice.org/40634Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>