Performance drop on BSON serialization

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      After NODE-5937 we observe significant (~50%) drop in performance for serialization. Investigate and provide overview of what changed and what can be improved.
      https://spruce.corp.mongodb.com/task/node_bson_perf_run_spec_benchmarks_02316031eef6f31fbb3b00ab124acb9754826892_26_06_04_12_23_35/trend-charts

        1.
        		 Some deserializing flags are not properly propagated to the parsing frames NODE-7618 Sub-task Closed Pavel Safronov bson-7.3.0
        2.
        		 Incorrect error thrown when objectSize is negative NODE-7619 Sub-task Closed Pavel Safronov bson-7.3.0

            Assignee:
            Sergey Zelenov
            Reporter:
            Sergey Zelenov
            Pavel Safronov
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              Created:
              Updated:
              Resolved: