BERLIN (Reuters) - Time is ticking on Brexit negotiations between Britain and the European Union and there is real urgency to make progress, a German government spokesman said on Monday.  More progress is required as time is ticking,  Steffen Seibert told a regular news conference.  It is understandable that the (EU) chief negotiator (Michel) Barnier stresses how urgent it is for Britain to act promptly, to make proposals.  