Directus Extensions: Provide Settings-Option

Summary In a lot of cases some small extensions could need some place where they can store some values, but doesn't need an own full table. For these cases I'd love to see a dedicated settings column within the directus_extensions table. Basic Example In our popular [field-actions]( extensions users can define some functionalities on field-level for the interface and the display. It'd be great, if there'd be a global config, which would allow users to define default settings. However id doesn't makes sense to introduce a new table + custom UI for such simple use-case Motivation Providing a unified settings-solution for small / simple extensions. Detailed Design 1. Devs define a settings-form comparable to the interface / display options 2. Directus creates an settings UI based on the configs and stores the result as JSON in a new field (e.g as a popup from the extensions-list or listed in the settings module) 3. The extensions settings are loaded int…