SPARQL operation different types of responses

[chenejac]

Is your feature request related to a problem? Please describe.
SPARQL dynamic action operation should support different format of result for the case of looking for unique resource or fetching all.

Describe the solution you'd like
SPARQL dynamic action should return a record, or an array. Probably we need some flags in definition of operation (whether it is looking for a resource or list), or in definition of provided parameters from the operation. Moreover, the type of a property in response is fixed to String, it is not working well for Integer values - see this line. Therefore, the HTTP request for fetching all geolocations (http://localhost:8080/vivo/api/rest/1.0.0/geolocation/), return
"total": "324^^http://www.w3.org/2001/XMLSchema#integer"
instead of
"total": 324