Add ofxSourcesEditor and some comments

src/ofxSourcesEditor.cpp

@@ -0,0 +1,11 @@
+#include "ofxSourcesEditor.h"
+
+ofxSourcesEditor::ofxSourcesEditor()
+{
+    
+}
+
+ofxSourcesEditor::~ofxSourcesEditor()
+{
+    
+}

src/ofxSourcesEditor.h

@@ -0,0 +1,14 @@
+#ifndef H_OFX_SOURCES_EDITOR
+#define H_OFX_SOURCES_EDITOR
+
+class ofxSourcesEditor
+{
+public:
+    ofxSourcesEditor();
+    ~ofxSourcesEditor();
+    
+private:
+    
+};
+
+#endif

src/ofxSurfaceManagerGui.h

@@ -1,6 +1,9 @@
 #ifndef H_OFX_SURFACE_MANAGER_GUI
 #define H_OFX_SURFACE_MANAGER_GUI
 
+// I'm starting to think, maybe we should use ofxStateMachine here.
+// Would make sense. TODO later.
+
 #include "ofEvents.h"
 #include "ofxSurfaceManager.h"
 #include "ofxTextureEditor.h"