feat: Added experimental nanomq option to use NanoMQ as the MQTT Broker

closes #389

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PR Checklist

Please check if your PR fulfills the following requirements:

[x] I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
[x] I have fully tested (add details below) this the new feature or bug fix (if not, why?)
[ ] I have opened a PR for the related docs change (if not, why?) README updated

From Compose Builder run the following commands

make gen ds-virtual mqtt-bus nanomq
- Verify nanomq option is not valid as MessageBus broker in secure mode is displayed
make run ds-virtual mqtt-bus nanomq no-secty
- Verify service all start and run as expected and data is flowing to App Rules engine
make gen ds-virtual mqtt-broker nanomq asc-mqtt
- Edit compose to replace MQTT_BROKER_ADDRESS_PLACE_HOLDER with tcp://edgex-mqtt-broker:1883
- run make up
- verify data is flowing thru app-mqtt-export to NanoMQ on edgex-events topic