Docker image for Homebrigde by nfarina

For details see https://github.com/nfarina/homebridge

This is simply wrapping the source in a runnable Docker image for everyone that cannot install the dev environment on his machine or everyone that wants a simple containerized solution.

Copy config-sample.json to config.json and adapt to your likings. Copy pluginsInstallList.example to pluginsInstallList and adapt to your likings.