Nfc Unlock (1/3)

Adds setting to security where Nfc tags can be added to a list of authorised tags that can bypass the lock screen security

Requires changes to frameworks_base and packages_apps_Settings

https://gerrit.omnirom.org/#/c/8991/ and https://gerrit.omnirom.org/#/c/8990/

Original Link https://github.com/AospPlus/android_packages_apps_Settings/commit/a6f7f59aafef1d4f29b74355c56d341de5854f50

Change-Id: I35214253c32687650ae2e2ba7dc54e9cedb10175
Add different options for Nfc polling (1/2)

https://github.com/AospPlus/android_packages_apps_Settings/commit/0724d1d2838c1c19c1c2ef3834f0c3372445a7a1

Change-Id: Ica15c230a015a1bf0afc6284664bc23a8d2e0713
[1/3] Settings: Nfc Unlock
Change-Id: If3e4d44995cd1a1bf7eae278ba3a7b7c216af778
Merge pull request #1 from Lloir/android-4.4

Nfc Unlock