add 2in13_V3 example code (Arduino)

Arduino/epd2in13_V3/epd2in13_V3.ino

@@ -0,0 +1,37 @@
+#include <SPI.h>
+#include "epd2in13_V3.h"
+#include "imagedata.h"
+
+Epd epd;
+
+void setup()
+{
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial.println("epd FULL");
+  epd.Init(FULL);
+  epd.Display(IMAGE_DATA);
+
+  Serial.println("epd PART");
+  epd.DisplayPartBaseImage(IMAGE_DATA);
+  char i = 0;
+  for (i = 0; i < 10; i++) {
+    Serial.println("e-Paper PART IMAGE_DATA");
+    epd.Init(PART);
+    epd.DisplayPart(IMAGE_DATA);
+    Serial.println("e-Paper PART Clear");
+	epd.Init(PART);
+    epd.ClearPart();
+  }
+  
+  epd.Init(FULL);
+  Serial.println("e-Paper clear and sleep");
+  epd.Clear();
+  epd.Sleep();
+
+}
+
+void loop()
+{
+
+}