Allow pint units in the input dictionary for abstract models

[larsschellhas]

Handling units in pyomo should work just as if you handle units in other python code.
If I want to instantiate an abstract model from a python dictionary, it should be able to hand in pint quantities as parameters.

[mrmundt]

In an effort to clean up old issues, we are moving some design discussions to our Archived Design Discussions wiki.

[galina-tmh]

I would highly appreciate instantiation of abstract model based on input given as pint quantities.
@mrmundt, could you please tell whether this issue is resolved or just been archived?

[mrmundt]

@galina-tmh - It is archived. It is not on our critical path to incorporate this; however, we welcome Pull Requests for enhancements that we do not have the bandwidth to address.