Issues/93 curl healthcheck

[hhund]

• Adds exception message to /status output
• Removes exception stack trace from console log
• Adds curl to the FHIR and BPE docker images
• Switches docker healthcheck client from Java StatusClient to curl

Example docker healthcheck output via docker inspect --format "{{json .State.Health }}" <container-name> | jq:

{
  "Status": "unhealthy",
  "FailingStreak": 2,
  "Log": [
    {
      "Start": "2023-09-10T17:44:00.837510545Z",
      "End": "2023-09-10T17:44:00.93886766Z",
      "ExitCode": 0,
      "Output": ""
    },
    {
      "Start": "2023-09-10T17:44:10.948604802Z",
      "End": "2023-09-10T17:44:11.078651085Z",
      "ExitCode": 0,
      "Output": ""
    },
    {
      "Start": "2023-09-10T17:44:21.08525279Z",
      "End": "2023-09-10T17:44:21.167959785Z",
      "ExitCode": 0,
      "Output": ""
    },
    {
      "Start": "2023-09-10T17:44:31.174856623Z",
      "End": "2023-09-10T17:44:31.307281157Z",
      "ExitCode": 1,
      "Output": "PSQLException: The connection attempt failed. -> UnknownHostException: db"
    },
    {
      "Start": "2023-09-10T17:44:41.314813895Z",
      "End": "2023-09-10T17:44:41.415824061Z",
      "ExitCode": 1,
      "Output": "PSQLException: The connection attempt failed. -> UnknownHostException: db"
    }
  ]
}

closes #93