CC-13: Collection Management Components

[matherg]

Create components that perform the following functionality:
Collection Management:
Collection list: list of collections with buttons to edit/delete
CollectionItem: Single Collection in the list
Collection form: form to create/edit a collection
GiftSelector: dropdown component with ability to add gifts to a collection

We need a component Collection Management that will be rendered on the admin page. Collection management will use GiftsData and CollectionsData from Admin Context. Implementation is up to you but we need 1. Ability to view all collections and gifts in them. 2. Ability to create/edit/delete a collection. 3. Ability to add gifts to the collection. Mock any data needed.