CVWidgetMSEditor: make list of actions scrollable

... not finished, still bug hunting

Signed-off-by:  <st9fan@gmail.com>
(cherry picked from commit aca82c23b64caae9ac271170ae665c4dbb433c2e)
Signed-off-by: Stefan Nussbaumer <st9fan@gmail.com>

Conflicts:
	CVCenter/CVWidgetMSEditor.sc

conflicts hopefully fixed
pull in changes to updated submodule Conductor