Update the directory structure of translators repo to use reverse URI based names for translators

[tjaffri]

We currently have folders with the name of the hardware corresponding to each translator (without namespacing) under each schema folder.

E.g. here we have folders like “Philips Hue Light Bulb” and “Osram Lightify Light Bulb”. These names are not namespaced, unlike schema names which are namespaced.

We need to update all the translator names to reverse URI based names, just like the schemas. The name of the hardware and the npm package name should be included in the package.json as description and name, respectively.

This will be a pretty disruptive change for anyone who depends on translators and the current structure of the repo, so we will need to make sure all dependencies are updated at the same time.

[tjaffri]

We need some further changes here, based on discussion with @jasongin and @sanjaiganesh

1. Move all reverse-uri naming schemes to lowercase (schema and translator folder names)
2. Tweak the names a little to use the "org.opent2t.sample.thermostat.superpopular" convention. This way they are still readable on GitHub but also following a naming hierarchy.

I will send another PR.

Thanks!