SystemUI: Lockscreen shortcut customization

Change-Id: I4abf1deed0a342e111453516fa7820191a55ffc4

Revert "SystemUI: recalculate clock position on removing empty shade views"

This reverts commit 023d3365.

Change-Id: I79bde45cd57e2523dbfa3211c5971c4b82a240c0

Lockscreen : Only animate targets if launched via swipe

If launching via gesture or double tap of power button, showing the
reveal doesn't make much sense and creates visual jank. Only animate
for swipes.

Change-Id: I69e1d06c77c12fe39b5ddb01bcc22ed2fff2a9d0

Keyguard : Ensure we expand onIconClicked

Not doing so shows visible clipping when the notification
panel is expanded mainly due to the limited height of the bar.

Change-Id: I50a35b186b3efb8a0e4ba0ae18ff915aebe236c6

SystemUI: fix double tap power launching custom lockscreen icon

Ticket: RM-232

Change-Id: I2ddf9fce55e9deb9cdf70416f0ed2ee5ce6ce225
Signed-off-by: Roman Birg <roman@cyngn.com>

Fix leftAffordanceView visibility bug

When you disable the left bottom lockscreen target, is suppose to be completely disabled like the right target.
While the icon itself disappears, the preview and hint are still present. This fixes that :-)

See images to see bug:
http://i.imgur.com/WhBvZkc.jpg & http://i.imgur.com/otyOn6m.png

Change-Id: If5b30f03649d5081409a98dbd36c49b99a5095d7

Ensure camera is launched if doing screen off gesture

Currently it launches whatever the right affordance is set to, which is
incorrect. Ensure screen off gesture always launches camera.

Change-Id: I251d37ccc85d014ff46714b222b9074b2092f6e1

SystemUI : Ensure previous camera preview is removed

For lockscreen shortcuts, ensure if the camera intent changes,
we remove the previous view.

Change-Id: I7c44353d25ddc47c3d986acf32dd9a3e85915c82