[PoC] Custom interceptor

[typeid]

This is a PoC as part of RDA7: this PR adds a custom interceptor that allows routing all alerts to CAD without starting a new pipeline for each alert. To achieve this, we create a custom interceptor in the form of a small http service that will determine whether or not we handle the alert or escalate it.

TODOs:

• the interceptor must contain the logic for incident -> alert mapping
• deployment of the interceptor needs to be part of CAD deployment