Attach meta information to components

[bebraw]

This should contain component name, description, examples, dependencies, and the component declaration. Likely a good convention would be to do Component.meta.json so that the information goes to a separate file to defer downloads in the editor.

[bebraw]

Likely the best way to do this is to have a convention and separate files to contain the meta information to avoid bloating the definitions (important for efficient loading at the editor as then this data can be fetched on demand).