New dpad and touchpad layout

An initial design for multiple remote layouts. To use the new layouts, use the remote field:

type: custom:polr-android-tv-remote-card
entity_id: remote.atvremote_2
remote: default

The accepted values are default, dpad, and touch.

The default layout you get with the current card.

A layout that better emulates a physical Google TV remote

A layout that emulates the swipe layout on the Google TV app