Added support for inheriting MonoBehaviour bindings and injecting GameObject using FromComponentSibling()

[suzdalnitski]

1. Added support for inheriting MonoBehaviour bindings (issue 294). To enable use Container.InheritMonoBehaviourBindings = true;

2. Added support for injecting the current game object. It might be useful to inject the current GameObject as a property instead of using the built-in .gameObject reference. Usage example:
   Bind<GameObject>().FromComponentSibling()

3. Added support for injecting static classes/members. Injecting static classes is useful for Unit Testing when using extension methods. To inject a static class from the installer:
   Container.QueueForInject(typeof(GameObjectExtensions));

To make an extension class mockable:

public static class GameObjectExtensions {
   [Inject]
   private static IGameObjectExtensions _extensionsImplementation;

   public static void MoveTo(this GameObject obj, Vector3 position)
                                          => _extensionsImplementation.Move(obj, position);
}