[added] Support for proper screenshot on some mce remotes

Add support print -> screenshot in this example.

Some MCE remotes have such keys as print, eject, slideshow, aspect etc.

e.g http://h10025.www1.hp.com/ewfrf/wc/document?cc=uk&lc=en&docname=c00844678
Merge pull request #5252 from uNiversaI/print

[added] Support for screenshot on some mce remotes