color and b/w parts. Useful for printing large documents with a few color pages
when color printing is expensive. This program was inspired by Jeremy Sander's
dvicoloursplit.py.
WWW: http://homepages.inf.ed.ac.uk/imurray2/code/#pdfcolorsplit
PR: ports/160208
Submitted by: Aldis Berjoza <aldis@bsdroot.lv>
