Lockscreen Notifications [2/2]

- Enable/disable lockscreen notifs
- Pocket mode
- Show always
- Hide Low Priority
- Hide Non Clearable
- Allow dismissing non clearable notifications
- Eenable/disable expanded notifications
- Force expanded view
- Wake on notification
- Notification count displayed at once
- Privacy Mode
- Offset to the top of the screen
- Blacklist apps (thanks @Der-Schubi and ChameleonOS)
- Custom notifications background color

Conflicts:
	res/values/pa_dimens.xml
	res/values/pa_strings.xml
	res/xml/security_settings_biometric_weak.xml
	res/xml/security_settings_chooser.xml
	res/xml/security_settings_lockscreen.xml
	res/xml/security_settings_password.xml
	res/xml/security_settings_pattern.xml
	res/xml/security_settings_pin.xml

Change-Id: Iea54f090c11c04e6f7d1468294f797fb3839bed9