Feature/has geometry

[annashamray]

issue - maykinmedia/objects-api#263

[joeribekker]

Hmm, it feels a little brittle. Can you still create objects with geo in the objects API even if hasGeo is false in the objecttype?

This should be checked! And, we should document in the API spec what happens if you set hasGeo to true/false, and also document it in the objects api that creating an object can error because of it.

[annashamray]

@joeribekker I've updated the description of the field in the schema
And I also created the check in the Objects API, which prevents adding geometry if the related objecttype doesn't allow it - maykinmedia/objects-api#265

[annashamray]

as discussed with @joeribekker hasGeometry field was renamed to canHaveGeometry