Add animation option to hide/show method

[kirkas]

It would be great to be able to animate the way status bar appear/disappear, using native status bar animation (UIStatusBarAnimationSlide/UIStatusBarAnimationFade).

Ex:

StatusBar.show("fade");
StatusBar.hide("slide");

[wildabeast]

Its a good idea. Unfortunately at the moment we (PhoneGap Build) don't have plans to commit time to adding features to this plugin, as it is more of just a stopgap for basic configuration of the StatusBar. However, if we were to receive a pull request for this feature, we would happily review and integrate it :)