Create a config action to allow recipes to ignore some config by adding to the existing settings.

Problem/Motivation

The settings of config ignore are not supposed to be edited outside of the code dealing with it. Recipes may want to add config to be ignored but the core actions are not going to cut it.

Steps to reproduce

manipulating config ignores settings via core actions and get frustrating results.

Proposed resolution

A new config action or maybe more than one.

Remaining tasks

research what actions are useful
implement them

User interface changes

none

API changes

adding a config action

Data model changes

none