Simple publish about hermes-protocol

[fredszaq]

Hi @oziee

I don't think this is a good idea, for multiple reasons.

• hermes in itself is MQTT agnostic, the implementation we use the most is indeed the MQTT one at the moment but we also have an inprocess version for which this doesn't make any sense
• I don't want to end up maintaining a generic MQTT client API in this lib, there are already better ones in all the languages we support and adding this here will add some maintenance cost that would be better spent elsewhere
• creating a new connection to the broker is not that expensive: networkwise it is only 2 small packets every few seconds for the pings when nothing is posted on it, which is nothing compared to the rest of the platform (say for example the sound input)

pity

snippets can't use the hermes mqtt client that is already connected. Snippets receive intent notifications.. but can't send mqtt except specific snips hermes mqtt topics

I hardy see any problem in adding a few lines of code that allow for access to the ffi connected mqtt client to publish -topic-message