Navbar toggle quicksetting for hardware navkey devices [2/2]

Unfinished business:
        icon tweaking (hopefully NOT IN GIMP)
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@Nico60
-Use Slim DeviceUtils instead of HardwareKeyNavbarHelper
-Added longpress for navbar settings
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Signed-off-by: nuclearmistake <nuclearmistake@gmail.com>
Change-Id: I51f8ca6e353a48bf7e974aba30b9cd3b15272ad7