Settings: Lock before unlock the new way (2/2)

for more information see fb commit please.
target selection if lock before unlock is activated
will be enabled and shows the repective settings dependend
on if it is a phone or tablet

Change-Id: I6bb41539383c2b02b62354b00c773505f396028e

Conflicts:
	res/values/slim_strings.xml
	res/xml/security_settings_biometric_weak.xml
	res/xml/security_settings_password.xml
	res/xml/security_settings_pin.xml
	src/com/android/settings/SecuritySettings.java
Settings: notification drawer background (1/2)

    so after keyguard is mostly done let us start notification drawer
    and QS. First one custom background.....either color or picture
    with custom alpha and ability to set a landscape picture seperatly
     if the user want. (lanscape phone only)

    Compared to the 4.3 included version completly recoded and better
    integrated. No idea what I thought 1 year ago on the old implementation

    cheeers

Change-Id: I23f4502e3d9e97f52245bbf3b41900939bb5c4ce

Conflicts:
	res/layout/slider_preference.xml
	res/values/slim_arrays.xml
	res/values/slim_strings.xml
	res/xml/notification_drawer_settings.xml
settings: notification transparency (2/2)

this add back notification transparency...compared to 4.3
it controlls as well the notification icon backgound transparency
which felt in the past dissplaced. As well codecleanup of the old
implementation.

largeIcon support I did not add due that google does not support it
as well at current status...it is only a placeholder in
NotificationData

Change-Id: Iacefd9d02919990517823e5d800c6e018c3c68a1

Conflicts:
	res/values/slim_strings.xml