The patch introduces a new command .uno:ImportMathClipboard to module Math.
It imports MathML content from clipboard and transforms it to Starmath
It handles clipboard MIME type 'application/mathml+xml' and
plain text, which can be interpreted as MathML segment.
It partly solves issues #i14252, #i34781, and #i53509 too.
Review by: Hanya <hanya.runo@gmail.com>
(cherry picked from commit 9ec21486)

Conflicts:
	dtrans/source/win32/ftransl/ftransl.cxx
	officecfg/registry/data/org/openoffice/Office/UI/MathCommands.xcu
	sot/inc/sot/formats.hxx
	sot/source/base/exchange.cxx
	starmath/sdi/smath.sdi
	starmath/source/view.cxx

Change-Id: I6cb5e8f737ee2e39f9ce96aba841db347a8806e4