Add new module ble-central-advertisements

[jospete]

I've created a module to unify disparities between android and ios advertising payloads, and parse raw android advertising data based on the Bluetooth GAP specification so it can match the pre-parsed ios data.

@don if this module looks good to you, I'd like to refer people to it in the main README so they can skip a lot of the boilerplate that comes along with raw android advertisements.

[peitschie]

Hi @jospete

I love it! The code you've written there looks really nice and clean.

Happy to recommend this as a good solution here 🙂