added arduino nfcReader files (#42)

Arduino/nfcReader/NDEF/examples/P2P_Send/P2P_Send.ino

@@ -0,0 +1,42 @@
+// Sends a NDEF Message to a Peer
+// Requires SPI. Tested with Seeed Studio NFC Shield v2
+
+#include "SPI.h"
+#include "PN532_SPI.h"
+#include "snep.h"
+#include "NdefMessage.h"
+
+PN532_SPI pn532spi(SPI, 10);
+SNEP nfc(pn532spi);
+uint8_t ndefBuf[128];
+
+void setup() {
+    Serial.begin(9600);
+    Serial.println("NFC Peer to Peer Example - Send Message");
+}
+
+void loop() {
+    Serial.println("Send a message to Peer");
+    
+    NdefMessage message = NdefMessage();
+    message.addUriRecord("http://shop.oreilly.com/product/mobile/0636920021193.do");
+    //message.addUriRecord("http://arduino.cc");
+    //message.addUriRecord("https://github.com/don/NDEF");
+
+    
+    int messageSize = message.getEncodedSize();
+    if (messageSize > sizeof(ndefBuf)) {
+        Serial.println("ndefBuf is too small");
+        while (1) {
+        }
+    }
+
+    message.encode(ndefBuf);
+    if (0 >= nfc.write(ndefBuf, messageSize)) {
+        Serial.println("Failed");
+    } else {
+        Serial.println("Success");
+    }
+
+    delay(3000);
+}