new brick handler parser + restructured project structure
Merge branch 'issue#364' of github.com:Catrobat/Catty into issue#364

# By Michael Herold
# Via Michael Herold
* 'issue#364' of github.com:Catrobat/Catty:
  added first Parser tests

Conflicts:
	src/Catty/VariablesContainer+CBXMLHandler.m