Settings: Use HDMIManager APIs

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
HDMI: Add HDMI resolution selector

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
HdmiSettings: Revamp HDMI output mode selector

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>