Do not remove id_field from properties

[dblodgett-usgs]

Overview

Notice that you can query for a feature by its id but the attribute you queried for isn't in the response anymore.

https://labs-beta.waterdata.usgs.gov/api/fabric/pygeoapi/collections/nhdplusv2-huc12/items?huc12=170101010306

Or in terms of the pygeoapi demo:

https://demo.pygeoapi.io/master/collections/dutch_windmills/items?gml_id=Molens.1

Notice that the query is for an id that doesn't get returned in the output.

Related Issue / discussion

#2103

Additional information

Dependency policy (RFC2)

• I have ensured that this PR meets RFC2 requirements

Updates to public demo

• I have ensured that breaking changes to the pygeoapi master demo server have been addressed
  • https://github.com/geopython/demo.pygeoapi.io/blob/master/services/pygeoapi_master/local.config.yml

Contributions and licensing

(as per https://github.com/geopython/pygeoapi/blob/master/CONTRIBUTING.md#contributions-and-licensing)

• I'd like to contribute [feature X|bugfix Y|docs|something else] to pygeoapi. I confirm that my contributions to pygeoapi will be compatible with the pygeoapi license guidelines at the time of contribution
• I have already previously agreed to the pygeoapi Contributions and Licensing Guidelines

[webb-ben]

Of note, the id_field column is included in the queryables and schema

[webb-ben]

Related issue #2103