#7 Restrictions should be stored in XmlSchema

[Istvan Zolyomi]

In ZSI-1.6, module ZSI.wstools.XMLSchema, detailed type
information is missing about the restrictions of a
SimpleType. It is unimplemented in method
SimpleType.fromDom, only a debug message is present:

elif component in RestrictionMarker.facets:
#print_debug(...)
pass

Only the restriction base type is stored currently,
please implement storage of restriction details.

[jachym]

This applies for 2.1-a1 as well.