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- Factor our helper class containing information about
  (Off)HostApduServices to ApduServiceInfo.
- New BIND_NFC_SERVICE permission to protect implementing
  services from other apps binding.
- Implement INfcCardEmulationService interface from
  the framework APIs.
- Observe changes in settings for default apps in a
  category.
- Single algorithm that resolves AIDs to a list of eligible
  services, taking into account defaults as well. Result of
  that algorithm feeds directly into the routing decisions.
- Removed old persisting code, everything is in Settings.Secure now.

Change-Id: I1840710f19435b079d20a4a41642b79fd03d1c76