feat(mat-selection-list): add slide toggle as alternative for checkbox

#### Bug, feature request, or proposal:
feature request

#### What is the expected behavior?
Option lists can have slide toggles instead of checkboxes, as you can see on Android OS.

#### What is the current behavior?
Option lists are only for checkboxes and if you want to create something that has the same look but has a slide toggle instead, you will have to implement by yourself.

#### What is the use-case or motivation for changing an existing behavior?
Its a very common option list format, very used on Android 5~6.

#### Which versions of Angular, Material, OS, TypeScript, browsers are affected?
Material 5.1

#### Is there anything else we should know?
You can find it in Material's guidelines:
*(switches are very cute btw)*

Cute sidebar example:
*(inspired by Twitter's PWA, achieved with slide-toggle, mat-list and `::ng-deep`, that's a lot more than I expect to write)*

まず、mat-selection-list と slide-toggle コンポーネント、および現在の option-list checkbox 動作がどのように公開されているかを確認します。option lists が期待される選択動作を維持しながら代替表示として slide toggles をサポートし、新しいオプションのカバレッジを含む状態になれば、作業は完了です。

索引モデルが issue の本文から書いたものです。