Add Prometheus Metrics + Dashboard

[A1Liu]

• [ ] Prometheus metrics producer in Schedge
• [ ] Prometheus database + dashboard in docker-compose for dev
• [ ] Prometheus production database
• [ ] Production Dashboard (grafana/chronosphere)
• [ ] Simplify data stored on production server, then use docker-compose up -d to update
  1. Production folder so that it's easier to update prod: #312
  2. Change prod to use the folder on next deploy

Notes:

• https://javalin.io/plugins/micrometer
• https://javalin.io/tutorials/prometheus-example

[A1Liu]

Prometheus service as separate lightsail instance