Bug/585 more empty types in responses

### DEscription
Adding two functional tests, ensuring that the EntityId type is present is the responses to convops (GET only)

There are a few responses that don't include the EntityId (and especially EntityId::type).
I realized this when the func tests was already finished but I let them stay anyway.

It is not what the test is about (making sute entity::type isn't empty) but it also doesn't harm ...