Numpad key codes support

[ptz-nerf]

There is not any response to numpad keys. Please update widgetKeyup function:

widgetKeyup: function (e) {
    if ((e.keyCode === 65) || (e.keyCode === 77) || (e.keyCode === 80) || (e.keyCode === 46) || (e.keyCode === 8) || (e.keyCode >= 46 && e.keyCode <= 57) || (e.keyCode >= 96 && e.keyCode <= 105)) {
        this.updateFromWidgetInputs();
    }
}