Integrate sentry to fhir-gateway servers

[SebaMutuku]

Description
There's need to integrate sentry with fhir-gateway to capture errors logs.
Acceptance criteria:
We would like to be able reference sentry instance through a PR e.g https://github.com/onaio/infrastructure/pull/7729

[dubdabasoduba]

@bennsimon to document what is needed to connect the plugins to sentry.

[bennsimon]

@dubdabasoduba

• Identify the logging framework used.
  • Logback is the current logging framework as indicated on the dependency file here, we therefore use Logback guide.
  • We need to confirm that any crucial logging call goes through logback.
• The configurations for the sentry initialization and log appender needs to be able to support the following:
  • Enabling/Disabling sentry logging.
  • Setting sentry options i.e dsn, tags, release-name, environment e.t.c.
  • Setting the minimumEventLevel and minimumBreadcrumbLevel.
• The above configurations should be on the application.yaml file preferably e.g SPRING_APPLICATION_JSON, SPRING_CONFIG_LOCATION.

Check sample spring boot setup here.