Noble (Node.js Bluetooth LE) for Windows 10

So far, noble has required an
alternate Bluetooth driver
on Windows, due to lack of good BLE support in the Windows Bluetooth stack. But the Windows 10
Creators Update has
finally improved the BLE support.
This project is an implementation of bindings for noble using that newly available
functionality in Windows 10.

System Requirements

* Node.js v6 or later.
* Windows 10 build 10.0.15063 or later
* Windows 10 SDK build 10.0.15063

Usage

Simply require noble-uwp instead of noble:
``javascript
const noble = require('noble-uwp');
`
Then use it in the same way as the regular noble.
On non-Windows platforms, the benavior is unchanged from noble, while on Windows the UWP bindings are used instead
of noble's Bluetooth HCI bindings.

Building for electron

Currently using electron-rebuild does not work.
In order to build this module for electron it has to be rebuilt using the following command:

`powershell
npm rebuild --runtime=electron --target=1.7.1 --arch=x64 --rebuild --disturl=https://atom.io/download/electron --build_from_source=true
`

adjust the target version to the version of electron you are running (1.7.1 works for electron 1.7.0 and up)

Testing

So far, testing has been done with a TI SensorTag.

First, make sure you have the
necessary prerequisites for building Node.js native modules.
Then, make sure a SensorTag is powered on (light is blinking) and within range, and use the
following commands to set up and run tests from Windows PowerShell:

`powershell
git clone https://github.com/sandeepmistry/node-sensortag
cd node-sensortag
npm install
npm install noble-uwp
node -e "var fs = require('fs'),
f = 'node_modules/noble-device/lib/util.js';
fs.writeFileSync(f, fs.readFileSync(f).toString().replace(
'require(\'noble\')', 'require(\'noble-uwp\')'))"
$env:DEBUG="noble-uwp"
node test.js
``

Notes:
* The NodeRT adapter libraries may take a few minutes to build with node-gyp; please be patient.
* The above string replacement in the noble-device source file is necessary to get it to use
the noble-uwp package instead of regular noble.
* The DEBUG environment variable setting is optional; set it if you want to see verbose console
output from noble-uwp`.

Implementation Status

The following functionality is working:
* Device discovery
* Device services discovery
* Service included services discovery
* Service characteristics discovery
* Characteristic reading and writing
* Characteristic change notifications
* Descriptors (discovering, reading, writing)

The following functionality is not yet implemented:
* Broadcast