[Ovmsdev] VW e-Up images for iOS app

Hi Mark I just did a pull request on the iOS app. I integrated the e-Up images. I compiled the app with Xcode 8.1, so I needed to correct the Storyboards. Compiled without any problems. You can find a screenshot of the simulator here: https://www.goingelectric.de/forum/viewtopic.php?p=1355192#p1355192 I'm not "that" firm on iOS development, so I hope the pull request is OK. Any corrections are welcome. Greetinx Chris