Resolves: #i125325# added code to handle block comments...

in Css style definitions

(cherry picked from commit 7b071b828a5f602cc30c17ddd871a75426a53faf)

Conflicts:
	svgio/source/svgreader/svgtools.cxx

Change-Id: I094228ea398686c5b39f5f279a964a2df7b00368