Reorganise IDE examples

examples/ide/visualstudio/src/blink.ino

@@ -0,0 +1,13 @@
+// Most Arduino boards already have a LED attached to pin 13 on the board itself
+#define LED_PIN 13
+
+void setup() {
+  pinMode(LED_PIN, OUTPUT);     // set pin as output
+}
+
+void loop() {
+  digitalWrite(LED_PIN, HIGH);  // set the LED on
+  delay(1000);                  // wait for a second
+  digitalWrite(LED_PIN, LOW);   // set the LED off
+  delay(1000);                  // wait for a second
+}