Add an own component for the `/check`-200-response

[maxl2287]

Problem description
As of now the response for a HTTP-200 just has as a schema the boolean.

      responses:
        "200":
          description: Boolean response indicating if the remaining data volume exceeds the provided threshold
          headers:
            x-correlator:
              $ref: '#/components/headers/x-correlator'
          content:
            application/json:
              schema:
                type: boolean

Expected behavior
We should add here an own component CheckDataVolumeResponse including a property like thresholdExceeded