improve allinson_flex's property singularity determination

[alishaevn]

ref: https://gitlab.com/notch8/utk-hyku/-/issues/154

Summary

setting cardinality: maximum: 1 in a metadata profile equates to the property being set as singular. (here’s the allinson_flex code) I think this needs to be updated. (see the "notes" section below for a potential implementation solution)

Acceptance Criteria

• able to import a metadata profile yml that sets the minimum and/or maximum cardinality correctly
• able to import a metadata profile yml that sets the property as singular or multiple correctly

Screenshots or Video

"title" property definition in the metadata profile yml

title:
  available_on:
    class:
    - GenericWork
  cardinality:
    maximum: 1
    minimum: 1
...

Testing Instructions

Notes

• I talked about this with braydon during his office hour and we think that we could add another sub-property field of multi_value that can be true or false. and we could use that field instead to determine if a property should be a string or array. from there, we could hopefully use the maximum value to instead determine the length of the array, if multi_value: true is set.
  • if the above path is chosen, this file may be of use.
• details about cardinality: https://github.com/samvera-labs/houndstooth/blob/017dffc285e78191ae6a3058f2a1bb1903c7d362/m3_json_schema.json#L325-L353