rgw: reef: adding s3test albin/json-op-serial

rgw: reef: adding s3test albin/json-op-serial

modify json chunk processing function to handle offset/length as csv-processing
a fix valgrind :: Conditional jump or move depends on uninitialised value
upon using Trino the Trino-server issue multiple requests per single query,upon completion of all requests
the results are merged (by Trino).  these request splits the input into equal parts; the RGW side should be aligned with Trino expectations(for result).
fixing the main routine for shaping the chunk (range-scan) for Trino processing
upon removing the payload-TAG, it need to change the response element index
handling more use cases for "shaping" the processed chunk by s3select per Trino request
re-shape the processed chunk only upon Trino sent the request
bug-fix: the chunk offset was not handle correctly
bug-fix: progress-message calcualation
modifying the range-request boundaries only upon Trino request.

Signed-off-by: galsalomon66 <gal.salomon@gmail.com>
(cherry picked from commit a62588959d28bd2bf16cc3bb9482e22e6f9eb195)