ADD: stream_pixels tool, tests, baselines


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4983 42a5c34f-2066-0410-bec5-ba365beb4995
DOC


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4984 42a5c34f-2066-0410-bec5-ba365beb4995