Three nfc tools basedon libnfc

Have reformated the formulas and tested.
Because these tools need NFC hardware to work, the test section only add very simple test to make sure the build and install is successful.

MFOC is an open source implementation of "offline nested" attack by Nethemba. 

MFCUK is MiFare Classic Universal toolKit, it containing samples and various tools based on and around libnfc and crapto1, with emphasis on Mifare Classic NXP/Philips RFID cards. 

the nfcutils contain a lsnfc tool use to identity nfc target type.