Re: [web-bluetooth] Helper functions to read values

I've changed default `littleEndian` to `true` as advised. Thank you!

Regarding the default/removal of `byteOffset`, that made me realized 
we might want to implement 
`BluetoothGattCharacteristic.prototype.getFloat32Value` instead of 
`BluetoothGattCharacteristic.prototype.readFloat32Value` so that it 
returns a Float32 value of the stored cached read value.
What do you think of adding an option to `readValue()` to return 
cached value such as 
```js
characteristic.readValue({cache: true})
.then()...
```

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Received on Friday, 8 January 2016 09:15:10 UTC