Summary:
- Introduce new base protocol `CKMountable`
- Contains Layout & Mount methods that have been extracted from `CKComponent`
- This will allows us to introduce a new lighter version of `CKComponent`, which doesn't rely on Scope/State/Controllers/etc
- Refactor `CKComponentLayout` to work with `CKMountable` instead of `CKComponent`, which will allows us to interop between `CKComponent` and a new type of components.
- Refactor the codebase to support this change
Reviewed By: kevin0571
Differential Revision: D17668253
fbshipit-source-id: 13db5ff4acb37b338e291ca2dd7d67cd25dbc6d2
52976f1ee3