Added MouseController class + example

hardware/arduino/sam/libraries/USBHost/examples/MouseController/MouseController.ino

@@ -0,0 +1,51 @@
+
+// Require mouse control library
+#include <MouseController.h>
+
+// Initialize USB Controller
+USBHost usb;
+
+// Attach mouse controller to USB
+MouseController mouse(usb);
+
+// This function intercepts mouse movements
+void mouseMoved() {
+  Serial1.print("Moving mouse: ");
+  Serial1.print(mouseX);
+  Serial1.print(", ");
+  Serial1.println(mouseY);
+}
+
+// This function intercepts mouse movements when a button is pressed
+void mouseDragged() {
+  Serial1.print("DRAG: ");
+  Serial1.print(mouseX);
+  Serial1.print(", ");
+  Serial1.println(mouseY);
+}
+
+// This function intercepts mouse button press
+void mousePressed() {
+  Serial1.print("Pressed: ");
+  Serial1.println(mouseButton);
+}
+
+// This function intercepts mouse button release
+void mouseReleased() {
+  Serial1.print("Released: ");
+  Serial1.println(mouseButton);
+}
+
+void setup()
+{
+  Serial1.begin(115200);
+  Serial1.println("Program started");
+  delay(200);
+}
+
+void loop()
+{
+  // Process USB tasks
+  usb.Task();
+}
+