Bug 903245 - [Gaia] Support sharing of Contact via NFC 

This Patch for Sharing the current contact information via NFC.
 Contact application register the onpeerready event.
 If the Contact Application is opened, NFC Device Paired with another
 device.

 The contact gets shrink and ready to share the current contact details
 to another device. Scroll the contact application. it  transfer current
contact information(Name, Family-name, Address,Phone,Email).