Add Empty LiquidSmooth Interface Settings

.

Change-Id: I76dfee51e7008df7dc02af18cc5ef0fd0e803de1
Settings: Add Advanced reboot [2/2]

Change-Id: If9c417e4e1d18dba785d3ee62a6d8bf622a0da1d
Port "Option to hide Adb notification icon (1/2)"

Frameworks part is already in place

Change-Id: Ie65625305153b45012846f6d2250fb707c4eebfd
Settings: Forward port long-press-back to kill app (1/2)

Change-Id: I60f4b95eb9cc2ef6cf73a5f9317bca066e6bb901
Buttons: Allow disabling hard navigation keys

This adds support for enabling the navbar on devices with
hardware keys.
This requires that the device supports the KeyDisabler
HAF methods, and is available in the Buttons menu

Change-Id: I01bd83b312745b4a8aa3bde0cf5f02ea99a888cc