Can I suggest that you publish your binding in the new Marketplace? It’s an easy way to self publish a new binding for testing, and people can download and install it from within openhab easily.
There is no review or anything of the code or binding, (of course there are a few rules to follow, this is openHAB we are talking about).
I developed a similar interface to ewelink a while back (in python), and I have a specific device I would like to add (3rd party, not Sonoff) to your binding. If you could update your github, i will attempt to add it in.
Thanks.