AfformGui - Optional reset button for search and submit forms

[colemanw]

Overview

Fixes https://lab.civicrm.org/dev/core/-/issues/3430

Allows search and submit forms to have a "Reset" button, and only allows a "Submit" button to be added to submission forms.

Technical Details

Adds some metadata about what elements belong on what form types, which will now hide the "submit" button as an option for non-submission forms.

[civibot]

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[seamuslee001]

This seems fine to me, i presume type reset does something within angularjs to reset the form?

[colemanw]

It's actually a vanilla html thing. But it works fine in Angular forms.