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/NotesLoaderKSF.h

@@ -0,0 +1,15 @@
+#ifndef NOTES_LOADER_KSF_H
+#define NOTES_LOADER_KSF_H
+
+#include "Song.h"
+#include "Notes.h"
+
+class KSFLoader {
+	bool LoadFromKSFFile( const CString &sPath, Notes &out );
+
+public:
+	bool LoadFromKSFDir( CString sDir, Song &out );
+
+};
+
+#endif