Added _insect_test Arduino sketch to Arduino example code

Software/Arduino/Example code/_insect_test/_insect_test.ino

@@ -0,0 +1,24 @@
+//#define CFO_MIDI_CHANNEL 4
+
+#include <stdint.h>
+#include <CFOMidi.h>
+#include <CFOMusic.h>
+
+
+void setup() {
+  
+  Music.init();  
+  Midi.init();
+  Midi.setChannel(16); // channel number is 1-16
+  Music.setSaw();
+  Music.setDetune(0.02);
+  Music.enableEnvelope();
+  
+}
+
+void loop() {
+  
+  Midi.checkMidi();
+  
+}
+