CBG-602 Fix x.509 authentication for sharded DCP feed (#4354)
CBG-602 Fix x.509 authentication for sharded DCP feed (#4354)

Requires setting the global go-couchbase credentials for the initial pools connection, and BucketDataSourceOptions.TLSConfig for partition lookup.
ceejatec/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,couchbaselabs/sync_gateway