Initial partial implementation of the Web Bluetooth spec for iOS, to get some basics working.

This builds on Paul Thierault's original implementation.

The app is fundamentally a WKWebView with a polyfill providing the javascript APIs calling through to the CoreBluetooth iOS API via a thin transaction management layer.

• .requestDevice(options)
  • options.acceptAllDevices = true to ask for any device
  • options.filters is a list of filters (mutually exclusive with acceptAllDevices) with properties
    • namePrefix: devices with names with this prefix will be included
    • services: list of service aliases or uuids.

• .id
• .name
• .gatt
• .gattserverdisconnected: EventHandler

• .connected
• .connect()
• .disconnect()
• .getPrimaryService(uuid)

• .uuid
• .device
• .getCharacteristic(uuid)

• .service
• .uuid
• .value
• .readValue()
• .writeValue(value)
• .oncharacteristicvaluechanged: EventHandler
• .startNotifications()
• .stopNotifications()
• .addEventListener()
• .removeEventListener()

Everything else is TBD!