[PH] Initial reporting updates for API Node and http transaction generator

[oschwaldp-oci]

Provide ability to measure and report on transaction, in particular http transaction, acknowledgement response time for sent transactions.

• Transaction Provider updated to:
  • log time of transaction acknowledgement
  • calculate and log send to acknowledgement response time

Report updated to include:

• Performance Test: Identify which Operational Mode was configured to run
  "operationalMode": "Block Producer Operational Mode",

• Performance Test Basic: Identify which API endpoint was targeted
  "targetApiEndpoint": "p2p",

• Transaction Acknowledgement Response Time statistics

"TrxAckResponseTime": {
      "min": -1.0,
      "max": -1.0,
      "avg": -1.0,
      "sigma": 0.0,
      "samples": 125010,
      "measurementApplicable": "NOT APPLICABLE",
      "units": "microseconds"
    },

• Transaction Metrics Log updated to include
  • Transaction Acknowledge Time (either timestamp or 'NA')
  • Response time (SentToAckDurationUs)