Move loaders into their own classes.

(These should have a common base class, but that can be done later;
I'm doing this to make it a bit more manageable so I can add the
new couples format to these.)

stepmania/src/NotesLoader.h

@@ -0,0 +1,21 @@
+#ifndef NOTES_LOADER_H
+#define NOTES_LOADER_H
+
+typedef int DanceNote;
+enum {
+	DANCE_NOTE_NONE = 0,
+	DANCE_NOTE_PAD1_LEFT,
+	DANCE_NOTE_PAD1_UPLEFT,
+	DANCE_NOTE_PAD1_DOWN,
+	DANCE_NOTE_PAD1_UP,
+	DANCE_NOTE_PAD1_UPRIGHT,
+	DANCE_NOTE_PAD1_RIGHT,
+	DANCE_NOTE_PAD2_LEFT,
+	DANCE_NOTE_PAD2_UPLEFT,
+	DANCE_NOTE_PAD2_DOWN,
+	DANCE_NOTE_PAD2_UP,
+	DANCE_NOTE_PAD2_UPRIGHT,
+	DANCE_NOTE_PAD2_RIGHT
+};
+
+#endif