Oscillator selects and examples

Made it possible to select type and number of oscillators to compile
(via preprocessor). Made Examples folder to library where  tutorials
will go in.

software/lib/MMM/examples/Music/Basic_MIDI/Basic_MIDI.ino

@@ -0,0 +1,34 @@
+// This needs to be in all sketches at the moment
+#include <stdint.h>
+
+// The Music and Midi objects are automatically instantiated when the header file is included.
+// Make calls to the Music and Midi objects with "Music.function(args)" and "Midi.function(args)"
+// You still need to call Music.init() and Midi.init() in the setup() function below.
+
+#include <Music.h>
+#include <Midi.h>
+
+void setup() {
+
+  // We initialise the sound engine by calling Music.init() which outputs a tone
+  Music.init();
+  
+  // We initialize the MIDI engine by calling Midi.init()
+  Midi.init();
+  
+  // Choosing the sine wave oscillator.
+  Music.setWaveform(3);
+  
+  // Enabling envelope, otherwise the synth would just play constant tones.
+  //Music.enableEnvelope();
+
+}
+
+void loop() {
+  
+  // The MIDI must be used with the external 
+  // "IAC2CFO.pde" Processing sketch.
+  Midi.checkMidi();
+    
+}
+