Add support for Components in CMS

[gaspb]

Describe your use case
Hi, we maintain a plugin to load CMS entries from an external system, including formatted text (markdown).
To allow placing framer Components within our blog content, as supported in the editor for not-synced entries as per the cms-component feature, we would need explicit support from the cms formattedText plugin api.

Describe the solution you'd like
Allow custom html tags like <\FramerComponent id="module-id" /> or <\div data-component-id="abc" /> and replace/inject them with the component code, similarly to what is done when using the web editor.
Ideally both in contentType="markdown" and non-markdown content type.

Describe alternatives you've considered
Splitting content in multiple formattedText fields and using multiple additional fields, which doesn't scale and doesn't match the experience of the online cms editor