[FEATURE] Add IMSDataConsumer to mzXML Handler
[FEATURE] add transform to mzXMLFile
[FEATURE] add mzXML support to SwathFile
[TEST] add test for OpenSwathWorkflow + mzXML
[PYOPENMS] added Pyhton support for MzMLFile.transform()

    includes Python implementation of IMSDataConsumer interface

Conflicts:

	pyOpenMS/setup.py
[PYOPENMS] wrapped MzXMLFile::transform
[PYOPENMS] some build system cleanup
Merge branch 'feature/pyopenms_mzxml_consumer' into develop

Conflicts:
	src/openms/include/OpenMS/FORMAT/HANDLERS/MzXMLHandler.h