adaptation for multigeometries
Merge branch 'IlwisCore/master'
merge in GeometryHelper::geometryType
a
added check and convertion of std::isnan(geos::geom::Coordinate::z) to ILWIS internal rUNDEF
created
added new database table for formats
added dataformat.h/.cpp
Merge branch 'IlwisCore/master'
added some extra interface
extended the fields in the formats table