lineage-sdk internal: Add LineageBatteryLights

Migrate frameworks/base lineage feature
code handling to lineage-sdk.

*) Settings observation and most lineage lights
   feature specific code has been moved to the
   lineage-sdk.

*) Battery frameworks services call out to the
   sdk to allow our features to make changes to
   lights values.

Based on the commits:

    Author: DvTonder <david.vantonder@gmail.com>
    Author: Ricardo Cerqueira <cyanogenmod@cerqueira.org>
    Date:   Mon Nov 4 00:57:51 2013 +0000
    Framework: Port CM9 features to CM10
    Change-Id: Ibd63116df90b06f6ce6adb8a0343059bbb999bfb

    Author: Pawit Pornkitprasan <p.pawit@gmail.com>
    Date:   Sun Dec 8 15:24:41 2013 +0700
    BatteryService: fix FC on boot until battery stat is present
    updateLightsLocked() can be called from CM's added SettingsObserver
    when battery stat is not present, causing an FC and a loop until
    battery stat is present.
    Change-Id: Ic4438fe50e98f1aa05ae1d0d26240bf9410fd92f

    Author: Sam Mortimer <sam@mortimer.me.uk>
    Date:   Tue Dec 31 16:22:05 2013 -0800
    [2/2] Framework: instant led test
    Adds support a new notification extra boolean
    EXTRA_FORCE_SHOW_LIGHTS.  Used by settings
    notification light picker to force lights on
    when the screen is on.
    Change-Id: If0a42d32b28fe8c02ef5f7dd148db7eb478fac17

    Author: Michael Bestas <mikeioannina@gmail.com>
    Date:   Mon Aug 18 04:56:28 2014 +0300
    Add support for single color notification LED (1/2)
    Change-Id: I367af77036da9e87c6dd0df552ce4c56d945a44d

    Author: Danesh M <daneshm90@gmail.com>
    Date:   Thu, 12 Nov 2015 10:52:11 -0800
    Framework : Move System settings to CMSettings
    Change-Id: I4e9fb06db7b9ba05e4a7bbe11916bb2271af4727

    Author: Adnan Begovic <adnan@cyngn.com>
    Date:   Mon, 9 Nov 2015 16:26:00 -0800
    fw: Move battery light settings to CMSettings.
    Change-Id: I28e60473356b2a9af152df82d34ad7abc9918682

    Author: Steve Kondik <steve@cyngn.com>
    Date:   Thu Sep 24 11:27:59 2015 -0700
    lights: Automatically generate an LED color for notifications
    Change-Id: I7288e52499819a6a6c75ed9d9ba7cfa1b13c5669
    nms: Only generate LED colors if the device has a multicolored LED
    * Check the overlay value before doing any of this stuff.
    Change-Id: Iedfceba6bfc86b2761d8af57ecab51026bfa4c19
    Change-Id: I7288e52499819a6a6c75ed9d9ba7cfa1b13c5669

    Author: Adrian DC <radian.dc@gmail.com>
    Date:   Sat Oct 14 23:08:47 2017 +0200
    fw: Rebrand to LineageOS and cleanup for Android Oreo
    Change-Id: I21d424433bb52a17eea7974c4ea29a3a16fe1be5

    Author: AdrianDC <radian.dc@gmail.com>
    Date:   Sat Jul 18 12:20:51 2015 +0200
    Lights with Screen On [1/2]: Optional allowment of lights
    Change-Id: I2071147d8ddab80ba0e1e7310e785ac3e03b3c7c
    Lights with screen on: Don't disable leds after the lockscreen
    Change-Id: If8f5b867a34be09fb061bb7ad040b16730f4e263
    Framework : Move System settings to CMSettings
    Change-Id: I4e9fb06db7b9ba05e4a7bbe11916bb2271af4727
    fw: Rebrand to LineageOS and port for Android Oreo
    Change-Id: I65cfeb659fe516ef43aa84b1c6d2eb6876df202a
    Change-Id: If8f5b867a34be09fb061bb7ad040b16730f4e263

    Author: Michael W <baddaemon87@gmail.com>
    Date:   Mon Oct 9 22:04:00 2017 +0200
    Core: Battery warning levels are inclusive, not exclusive
    Change-Id: Ib35b154b6117f7e26b4a3a5aee9254dda3adda12

    Author: Adrian DC <radian.dc@gmail.com>
    Date:   Sat Oct 14 23:08:47 2017 +0200
    fw: Rebrand to LineageOS and cleanup for Android Oreo
    Change-Id: I845f866891386aee808a4e7e80f4ab7c3ad48830

Change-Id: I13fcb1e16756a8008d0850050e0b09ab0b92a56f