Move responseBody struct to better location
Move responseBody struct to better location

Signed-off-by: Tobias Zipfel <087edddb12ac44c92ffe5bde7e37fdd0c506a257@de.ibm.com>

petergtz/bitsgo,cloudfoundry-incubator/bits-service,petergtz/bitsgo,cloudfoundry-incubator/bits-service,cloudfoundry-incubator/bits-service,cloudfoundry-incubator/bits-service,cloudfoundry-incubator/bits-service