Added SI2C example (HelloWorld_si2c) to the library.

examples/HelloWorld_si2c/HelloWorld_si2c.ino

@@ -0,0 +1,54 @@
+
+#include <LiquidCrystal_SI2C.h>
+
+LiquidCrystal_SI2C	lcd(0x4e,2,1,0,4,5,6,7);
+
+// Creat a set of new characters
+const uint8_t charBitmap[][8] = {
+   { 0xc, 0x12, 0x12, 0xc, 0, 0, 0, 0 },
+   { 0x6, 0x9, 0x9, 0x6, 0, 0, 0, 0 },
+   { 0x0, 0x6, 0x9, 0x9, 0x6, 0, 0, 0x0 },
+   { 0x0, 0xc, 0x12, 0x12, 0xc, 0, 0, 0x0 },
+   { 0x0, 0x0, 0xc, 0x12, 0x12, 0xc, 0, 0x0 },
+   { 0x0, 0x0, 0x6, 0x9, 0x9, 0x6, 0, 0x0 },
+   { 0x0, 0x0, 0x0, 0x6, 0x9, 0x9, 0x6, 0x0 },
+   { 0x0, 0x0, 0x0, 0xc, 0x12, 0x12, 0xc, 0x0 }
+   
+};
+
+void setup()
+{
+  int charBitmapSize = (sizeof(charBitmap ) / sizeof (charBitmap[0]));
+
+  lcd.begin (16,2);
+  lcd.setBacklightPin(3, POSITIVE);
+  lcd.setBacklight(HIGH);
+
+   for ( int i = 0; i < charBitmapSize; i++ )
+   {
+      lcd.createChar ( i, (uint8_t *)charBitmap[i] );
+   }
+
+  lcd.home ();                   // go home
+  lcd.print("Hello, Arduino ");  
+  lcd.setCursor ( 0, 1 );        // go to the next line
+  for ( int i = 0; i < 8; i++ )
+    lcd.print (char(i));
+  delay ( 1000 );
+}
+
+void loop()
+{
+   lcd.home ();
+   // Do a little animation by writing to the same location
+   for ( int i = 0; i < 2; i++ )
+   {
+      for ( int j = 0; j < 16; j++ )
+      {
+         lcd.print (char(random(7)));
+      }
+      lcd.setCursor ( 0, 1 );
+   }
+   delay (500);
+}
+