added some libs and projects

libraries/LiquidCrystal_I2C/examples/MultipleLcd/MultipleLcd.ino

@@ -0,0 +1,24 @@
+#include <Wire.h> 
+#include <LiquidCrystal_I2C.h>
+ 
+LiquidCrystal_I2C lcd1(0x26,16,2);  // set the LCD address of the first lcd to 0x26 for a 16 chars and 2 line display
+LiquidCrystal_I2C lcd2(0x27,16,2);  // set the LCD address of the second lcd to 0x27 for a 16 chars and 2 line display
+ 
+void setup()
+{
+  lcd1.init();                      // initialize the first lcd 
+  lcd2.init();                      // initialize the second lcd 
+ 
+  // Print a message on the first LCD.
+  lcd1.backlight();
+  lcd1.print("Hello, #1 world!");
+ 
+  // Print a message on the second LCD.
+  lcd2.backlight();
+  lcd2.print("Hello, #2 world!");
+ 
+}
+ 
+void loop()
+{
+}