Feat/kafka collector

[microwavekonijn]

Collector that uses Kafka. Each message will be assigned a topic based on event name, world id, and optionally the zone id. Messages are retained by default for 3 to 7 days and are stored in a single partition. The use of Kafka allows previous alerts to be replayed which can be used to back-fill data, or test new features that are being developed(which can then also be compared to alerts on the production).

• Documentation of config;
• Build pipeline for docker;
• Integration into the Aggregator.

This is also a prototype. It can be expanded with cron jobs and data fetching, such as to fetch map data on a regular basis or characters related to a event. This requires however bigger changes on the aggregator side as it changes the data ingress format.