Observability

Purpose
- To enable simple, comprehensive metrics and logging observability for databuild applications
Wrappers as observability implementation
- Liveness guarantees are:
  - Task process is still running
  - Logs are being shipped
  - Metrics are being gathered (graph scrapes worker metrics, re-exposes)
- Heartbeating
- Log shipping
- Metrics exposed
Metrics
- Service
- Jobs
Logging
- Service
- Jobs