Simple search view for hosts, notes and shows

[eigenwijsje]

• The search is limited to Host.name, Note.title and Show.name fields,
• The scope of can be narrowed by specifying the types query parameter: host, note or show.
• The view is paginated and returns a list of objects, annotated with their type,
• The view is exposed at /v3/search/ and expects the q and handles the page parameter.

It doesn’t require any migration, it’s limited because it uses SELECT ... from ... WHERE ILIKE for the search.

[equinox0815]

lgtm. Do you want me to deploy to prod?