Generator: remove genxml & minixsv in favor of standart lxml

.travis.yml

generator/lib/__init__.py

generator/lib/genxmlif/README.txt

generator/lib/genxmlif/__init__.py

generator/lib/genxmlif/xmlif4Dom.py

generator/lib/genxmlif/xmlifApi.py

generator/lib/genxmlif/xmlifBase.py

generator/lib/genxmlif/xmlifDom.py

generator/lib/genxmlif/xmlifElementTree.py

generator/lib/genxmlif/xmlifMinidom.py

generator/lib/genxmlif/xmlifODict.py

generator/lib/genxmlif/xmlifUtils.py

generator/lib/genxmlif/xmliftest.py

generator/lib/minixsv/README.txt

generator/lib/minixsv/XInclude.xsd

generator/lib/minixsv/XMLSchema-instance.xsd

generator/lib/minixsv/XMLSchema.xsd

generator/lib/minixsv/__init__.py

generator/lib/minixsv/datatypes.xsd

generator/lib/minixsv/minixsv