Epic: firstMile: MQTT Onboarding Phase 2

- Establish an onboarding pattern/model for Publish/Subscribe (Pub-Sub) data sources - consult Gene, Helen, Bucky & Sahas

- Overview
- Sample Server per pub subtype
- Connect to server (broker)
- *Security step not needed for onboarding since it's sample data
- Subscribe to Topic
- Define Parsing Rules
- Receive Data
- Validate Reception (Listener)
- Connect to InfluxDB
- Create Token
- Write Data to InfluxDB
- Validate the write
- Simple Query
- Aggregate Query
- Finish

- MQTT Entry Paths (Native MQTT path, Telegraf MQTT path)
Need to consult with Samantha on the Telegraf MQTT path

- Sample Data Service - Waiting on SRE Team for hosting info

- Optional - Reuse Query Experience Components - dependent on the readiness of QX components - https://github.com/influxdata/ui/issues/5364

- UI Eventing

- Deep Links

- End to End Testing

- Manage by a feature flag (separate than MVP feature flag)