Get parser runnable jar file to work with real TTPs

Get parser runnable jar file to work with real TTPs

* Change parser's main function to create a simple TTP and print it in
  JSON instead of just printing a string.
* Created a utils module which provides tools for converting between
  TTPs and JSON/XML.
* Refactored a lot of the functions from the ttp-model's tests to the
  util module.

Change-Id: I667f120606217557711a0c7d778aea9f26146baf
Signed-off-by: Colin Dixon <colin@colindixon.com>