[Console] add summary-description

Example for skinners for the screen:

	<screen name="Console_summary" position="0,0" size="256,64">
		<widget source="parent.Title" render="Label" position="120,0" size="136,40" font="FdLcD;17" halign="center" valgin="bottom" />
		<widget source="parent.summary_description" render="Label" position="0,48" size="256,19" font="FdLcD;18" halign="center" noWrap="1" />
	</screen>