- Delegates: Renaming `ViewStateSupport` and `ViewStateManager` to `M…

…vpViewStateDelegateCallback`. Introduced other delegates like `ActivityMvpDeleage`, `FragmentMvpDelegate`, `ViewGroupMvpDelegate`, `ActivityMvpViewStateDelegate`, `FragmentMvpViewStateDelegate` and `ViewGroupMvpViewStateDelegate`

- Because of new Delegates a minor migration must be done:
  - `MvpViewStateFragment`, `MvpFragment` and `MvpViewStateActivity´ and `MvpActivity` have now to generic parameters: <MvpView, MvpPresenter>
  - `createPresenter()` method must be `public` (instead of `protected`)

- Introducing MVP and ViewState support for `ViewGroup`s like `FrameLayout` etc.

- Slightly changes the internal way of how `RestoreableViewState` works

- Updated to latest `FragmentArgs` version `2.1.0`

Ready for Version 1.0.02