Change MeasurementGateway to annotation based spring integration

[iasatan]

• [x] Define the interface
• [x] Place a SI Configuration next to the MeasurementQueryService Interface and configure it properly.
• [x] Test the MeasurementQueryService at localhost.
• [x] Use Annotation Configuration
• [x] URL should not be encoded directly.

[ZsoltToth]

Which Interface ???