CCBC-1233: Updated RTO to independently specify operation_name.
CCBC-1233: Updated RTO to independently specify operation_name.

Motivation
----------
A change was made to the RTO RFC which split the operation name
into a separate field rather than being included in the operation
id.

Changes
-------
Split the existing operation_id data into separate operation_name
and operation_id fields.

Change-Id: Idda2269a1649086e34d530f33fc150e89ad3430d
Reviewed-on: http://review.couchbase.org/c/libcouchbase/+/128240
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: David Kelly <d83cd2a93a916ce0b0d4c1349b44be044799feca@gmail.com>

couchbase/libcouchbase,kojiromike/libcouchbase,kojiromike/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase