Allow possibility to extend baseEditForm

[martinbelcic]

Is your feature request related to a problem? Please describe.
I need to extend the base Component class' editForm to add custom validation to API.key property on every component.

Describe the solution you'd like
I'd like to be able to define Component class in a custom module the same way I do when creating custom components.

Describe alternatives you've considered
I've tried to access Component.baseEditForm setter and to define a custom baseEditForm for the Component class similarly as it's done with custom components.

Additional context