Bug 916863: Added NFC console commands
Bug 916863: Added NFC console commands

There are currently 3 console commands for NFC, which allow
for injecting rf_discovery and rf_intf_activated notificatons,
and data messages into the emulated NFC device.

Signed-off-by: Thomas Zimmermann <9db2882e8bd65115896ebac31a8fb3c23a33f58a@users.sourceforge.net>

tdz/platform_external_libnfcemu,mozilla-b2g/libnfcemu,mozilla-b2g/libnfcemu,tdz/platform_external_libnfcemu