Moving search functionality to LibraryContainerView

### Purpose

Create LibraryContainerView. Move there Search UI.

### Modifications

It is created `LibraryContainerView.xaml` and `xaml.cs` files. There copied UI from `SearchView` connected with Search. Event handlers are grouped and renamed by schema `SomeControlSomeAction`. Code isn't almost changed.

The idea of this container to have search and switch between `LibraryView` and `LibrarySearchView`.

### Reviewers

@Benglin, please take a look.