DialogFlow v2 integration

[nickdex]

Since DialogFlow (originally api.ai) was acquired by google, the api has been changed.

Make changes to have it running on (/agent route)

FIrst read up of docs on new api of dialogflow.

We need to parse three things from request.
Entity, Action and Room
We then package them into an object of type IotPayload (in iot folder)

We pass this to Mqtt queue to have it processed further

[frunkad]

Hey! Can I work on this issue?

[nickdex]

Yes, @frunkad, Please go ahead and feel free to ask any questions here