UITests - [Xam Dev Summit Session + More]

[Sweekriti91]

• Added UITests for basic flows
• TODOs added for future tests
• Possible TODO (maybe before App Center run, backdoor for localDb)

Current Issues found

• MediaItemCell file is in the Views folder instead of Cell folder
• After starting a song to play -> open now playing view -> hit pause -> app crash. Or Tests.cs file look for Test with Category["regression"] . on both iOS and Android
• Android, NowPlayingPage CloseButton doesn't close the page