Enable bw_form_field_category for other hierarchical taxonomies

[bobbingwide]

When creating "Stupidly Brilliant" bigrams on seriouslybonkers.com I currently need to create the bigram then edit it to assign the taxonomy term for "supplied-by" and "synthesised-by". It should be possible to provide a drop down list of for each of these taxonomies, making creation of new bigrams a bit easier.

There's still the matter of editing the content to convert it into blocks but that's a separate requirement.

Requirement

• To be able to offer drop down lists for the "supplied-by" and "synthesised-by" taxonomies in the form displayed by [bw_new].

Proposed solution

• Enable bw_form_field_ prefixed functions for fields which contain hyphens ( - ) rather than underscores ( _ ) eg Allow use of the bw_form_field_supplied_by function to implement the supplied-by field.
• Extend bw_form_field_category() to pass the taxonomy arg to wp_dropdown_categories()
• In the bigram plugin, implement bw_form_field_supplied_by and bw_form_field_synthesised_by with calls to bw_form_field_category

[bobbingwide]

Enable bw_formfield prefixed functions for fields which contain hyphens ( - ) rather than underscores ( _ ) eg Allow use of the bw_form_field_supplied_by function to implement the supplied-by field.

This requires a (corequisite) change in oik's function bw_form_function() in includes\bw_metadata.php

[bobbingwide]

Delivered in oik-fields v1.54.3