CircleAnimationView:有圆环和实心两种类型动画，可用作提示效果

CircleAnimationView ####圆环放大效果，设置circleType为CircleTypeRing，效果如下： CircleAnimationView *animationView = [[CircleAnimationView alloc] initWithFrame:CGRectMake(150, 200, 24, 24)]; animationView.circleType = CircleTypeRing; [self.view addSubview:animationView]; ####实心放大效果，设置circleType为CircleTypeRound，效果如下： CircleAnimationView *animationView = [[CircleAnimationView alloc] initWithFrame:CGRectMake(150, 2