SystemUI: allow for the clock to be centered (2 of 2)

    This allows the clock to be centered and does
    not break the normal functionality of the status bar.
    Overflow for status bar icons is adjusted accordingly
    when the clock is centered. The clock slides in/out
    when centered and the ticker is running.

Change-Id: I4f71263d94128619e3347585e188b29ab3a7f19b
Settings: added FastCharge QS tile

Change-Id: Iff94e5aee0694811015e631d13f8e99237160f86
Lockscreen: See through (2/2)

Add the ability to see through lockscreen.
Adapted to kitkat from jellybean by @BigBrother1984

Signed-off-by: D4rKn3sSyS <jesdga95@gmail.com>
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS2:

* Indenting and fix of the LOCKSCREEN_SEE_THROUGH variable check.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS3:

* Add see through checkbox to security_settings_chooser.xml, reflects the security_settings_lockscreen.xml.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS4:

* Made the option available with every lock mode (PIN, Password etc.) cause it works with every mode now.
* Update description with better one.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

PS5:

* Make description more like aosp strings.

Change-Id: I8c8d70d214bc36504ff0cfbe8d40656eb56d62ff
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>