Implement data model for quickstatements

[cthoyt]

Right now, the construction of the quickstatements text is really hard to understand, and therefore to debug or extend. I would suggest creating a data model (i.e., a set of interconnected classes) that can better assist with the construction of quickstatements in a programmatic way, then can also implement serialization to text

[lubianat]

I think having a simple quickstatements data model is great, and it eventually deserves a module on its own!

I'd definitely incorporate it in https://github.com/lubianat/wdcuration

[cthoyt]

@lubianat I don't think so - wdcuration needs a lot of work. I would rather spin it out myself later and ensure maximum code quality and testing and to make sure that it can be relatively stable. It's sort of problematic to have to edit wdcuration functionality when trying to get pyorcidator to work

[lubianat]

yes, that is what I mean, incorporate by import