Add unit tests for NfieldMediaFilesService.GetAsync and escape filename correctly.
Handle error responses that are not JSON.
Change fileName to be a parameter instead of part of the route so that it can handle special characters
Added INfieldSurveysService::SamplingPointImageAddAsync()
corrected uri and added filename as returns value
fixed a type
filename passed as a json object
Download/Delete interviewer pdf added
Get interviewer by client id
api url is updated for getting interviewer by client id
added spare samplingpoints
adding nfield logo for nuget experiment
Delete address added, get and delete sampling point image added
Replace IsSpare property of Sampling Point with an enum type.
Merge branch 'development' into SurveyFieldwork