ADD xmlChecker.sh script
a step closer to the json format proposal
FIX XML checking functionality, including XML extraction from harness test files
Merged with develop
Merge pull request #63 from telefonicaid/feature/json_format_closer_to_proposal

Feature/json format closer to proposal
FIX raised during code review
Merge pull request #62 from telefonicaid/feature/xml_checker

XML checking script
Merge branch 'develop' into bug/json_entity_rendering