Add support for template-specific relations

[Filip]

Related to:

Ability to limit the scope of a relation

Is your feature request related to a problem? Please describe. The add relation pop-up in the create type view lists all the relations across all object types, even the ones such as the camera, camera aperture, camera exposure & rotten tomato scores, etc. [image] These relations are tightly coupled to an objects type. A rotten tomato score is not applicable to any type except a media or a web series. Same goes for the camera exposure relations which is only applicable for the image type. Sin…