[FEATURE] Support custom properties for DGML serialization #93
Description
Is your feature request related to a problem? Please describe.
I need to be able to attach property values for nodes and links when serializing to DGML, but right now there's no way to do this, only the ability to provide a collection of property definitions.
Describe the solution you'd like
A method of attaching values to nodes and links tied to property objects.
Describe alternatives you've considered
The only alternative I can come up with would be to post-process the XML output by the DGML serializer, but with the amount of additional context that would be required I might as well be serializing by hand.
Additional context
None.