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)*

Comienza revisando los componentes mat-selection-list y slide-toggle, así como la forma en que se expone el comportamiento actual de checkbox de option-list. El trabajo estará terminado cuando las listas de opciones admitan slide toggles como una presentación alternativa, manteniendo el comportamiento de selección esperado y con cobertura para la nueva opción.

Escrito por el modelo de indexación a partir del texto del issue.