Fix Data Broker parameter documentation

[soderluk]

What is the problem?

Now in the documentation for the Data Broker API the descriptions for all parameters are missing from the middle section. It now only states body without any description.

What do you expect to see / happen?

I expect to see all the properties to be passed to the Data Broker API explained in the middle section.
To fix this, remove the types: part from the beginning of the RAML file, and move the properties to the request.