Active Display squashed commits [1/2]

Add active display to ChameleonOS [1/2]
Change-Id: I51c17cec33b65dc60111a10c5ca2c449596ebe63

Correct active display settings naming
Change-Id: Ibfa2d41eed01d8987df52f013b111a0ce4e70739

Active display: Add options for date and am/pm [1/2]
Change-Id: Idc09772829cc6aa9bcfb064459fb3557c7b37f6b

Active display: Add sunlight mode. [1/2]
Change-Id: I541e74c5a1a7e6ce5028ab00cf998bba1d4fe0f9

Delay hiding systemui by 100ms
Change-Id: Iad432f75195983837d643fa38495e6beb54f3e22

Active display: make sure mNotificaiton is set correctly
Change-Id: I4111ca843e340cca4d6dac4b2c2922ce3039e487

Active display: register/unregister recievers and listeners when enabled/disabled
Change-Id: Ic73e63da2c9634bc864ab1a1387eb9145eb0b5b0

Active display: Unify (un)registering callbacks and add proper checks.
Change-Id: Ie4c4660a54d2c60831f7a3bcc66b3a9ca1d035f2

Active display: allow hiding low priority notifications. [1/2]
Change-Id: I4831d6864b509e62b449c25619c59f5d6760ec47

Active display: Enable proximity sensor only when screen is off
Change-Id: I70979b5931815adb74bd8bc42e32886a6d829a12

Active display: Use a default notificaiton icon.
Change-Id: I4087ef3e407cf976f7bfb2bb89f850641101bc73

Active display: Only fetch next notification if mNotification is null.
Change-Id: Ife8511d4a4b8c448bc7aa8997a250068bec5fae7

Active display: Don't show active display if call state is not idle.
Change-Id: I2cb79e097ae24dc6ad6c8a33be88eb19f7d8d235

Active display: Allow apps to be excluded from being displayed [1/2]
Change-Id: I5c334833b78325733ae076c07afccebb02758ead