USBHID: update examples

Author: facchinm

Diff for: libraries/USBHID/examples/Keyboard/Keyboard.ino

@@ -0,0 +1,15 @@
+#include "PluggableUSBHID.h"
+#include "USBKeyboard.h"
+
+USBKeyboard Keyboard;
+
+void setup() {
+  // put your setup code here, to run once:
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(1000);
+  Keyboard.printf("Hello world\n\r");
+}

Diff for: libraries/USBHID/examples/Mouse/Mouse.ino

@@ -0,0 +1,17 @@
+#include "PluggableUSBHID.h"
+#include "USBMouse.h"
+
+USBMouse Mouse;
+
+void setup() {
+  // put your setup code here, to run once:
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(1000);
+  Mouse.move(100,100);
+  delay(1000);
+  Mouse.move(-100,-100);
+}