Implment basic query paramenters.
Implment basic query paramenters.

  * GET request can accept a 'limit' and 'skip' parameter
    to paginate and filter the results. Default limit value
    is 20.

kernelci/kernelci-backend,joyxu/kernelci-backend,joyxu/kernelci-backend,joyxu/kernelci-backend,kernelci/kernelci-backend