* spine-ios.csproj: Adding MonoGame and Xamarin.iOS example

* Main.cs:
* Game1.cs:
* Info.plist:
* Default.png:
* Main.cs:
* logo.png:
* GameThumbnail.png:
* Info.plist:
* Default.png:
* ExampleGame.cs:
* logo.png:
* Lidgren.Network.dll:
* spine-xamarin.ios.csproj:
* GameThumbnail.png:
* spine-monogame-ios.csproj:
* MonoGame.Framework.dll:
* AssemblyInfo.cs:
* AssemblyInfo.cs:
* spine-xamarin.ios-example.csproj: