Support `asyncapi` `mqtt` streetlights mapping to `kafka` streetlights

[jfallows]

Describe the desired outcome from the user's perspective
As devops, I want to map AsyncAPI mqtt streetlights example to AsyncAPI kafka streetlights example.

Acceptance criteria

• Publishing to various topics in mqtt results in the same named topics being used in kafka

Additional context
mqtt-kafka requires with topic: …/${params.streetlightId}/… to propagate dynamic topic name to kafka during mapping
asyncapi proxy needs to generate with: ... ${params.streetlightId} internally