xsd-fu: Ignore M, K and V elements in headers, sourcedeps and forward declarations
ome-xml: Append child M elements to MapPairs
cpp: ome-xml: Add MapPairs update and asXMLElementInternal methods
ome-xml: Add model properties
Merge pull request #6 from rleigh-dundee/new-map-fixes

Correct code generation and MapPairs serialisation