adding Appendix C
adding X-XARF PLAIN example image
adding X-XARF PLAIN example image
adding X-XARF PLAIN example image
adding X-XARF PLAIN example image
adding X-XARF SECURE example image
adding X-XARF SECURE example image
adding example image for x-xarf bulk
using ISTLP definition instead of Wikipedia's
Merge pull request #3 from uebelacker/master

Additions to v0.2