Setter for gyroscopeControl of DVParallaxView

DVParallaxViewGyroscopeControlSetter.m

-(void)setGyroscopeControl:(BOOL)gyroscopeControl {
    if (_gyroscopeControl == gyroscopeControl)
        return;
    
    _gyroscopeControl = gyroscopeControl;
    
    if (gyroscopeControl) {
        [self.motionManager startDeviceMotionUpdates];
        [self.displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    } else {
        [self.displayLink invalidate];
        [self.motionManager stopDeviceMotionUpdates];
        self.motionManager = nil;
    }
}