What's new:
* New WinRT helper class;
* GATT Client: new
ConnectOnRead property. This property allows to save time on re-connect to device. If the property is
True the real connection will be executed on first services read. If the property is
False the real connection will be executed during connection operation;
* GattClient demo updated to show ConnectOnRead property functional;
* GATT Client: fixed resource leak in case of connection error.
https://www.btframework.com/bluetoothframework.htm
