Added a basic Fritzing diagram and a RFID-RC522 part

Added a basic Fritzing diagram and a RFID-RC522 part.

The part is based on the `RFID-RC522.fzpz` by Peremptor, as provided with the "Display 16x2 + RFID-RC522" project at http://fritzing.org/projects/display-16x2-rfid-rc522 which refers to an older version of the MFRC522 library (at least it seems to me from a quick look at the files in `rfid-master.zip` referred to). I've modified the part to a `RFID-RC522-v2.fzpz` version that is blue, without USB connector and (visually) re-arranged to reflect the China made "RFID-RC522" clone I received in some starter kit.

The basic Fritzing for an Arduino Uno r3 connected with that RFID-RC522 part via a breadboard shows how I wired it to run the `DumpInfo.ino` example.