-Added SaveAble interface

src/save/saveable.hxx

@@ -0,0 +1,24 @@
+
+#ifndef LUPPP_SAVEABLE_H
+#define LUPPP_SAVEABLE_H
+
+/** SaveAble
+ * This class is inherited from by all classes that can save thier state.
+ * The virtual save() function is overriden, and called when a save action is
+ * triggered.
+ * 
+ * This flexibility allows eg LooperClips to request buffers to transer audio
+ * data into the GUI thread for disk serialization, and scales for future 
+ * classes which also need to request memory in order to save in a RT safe way.
+**/
+class SaveAble
+{
+  public:
+    SaveAble();
+    
+    /// this function is called when the user initiates a save action
+    virtual void save();
+};
+
+#endif // LUPPP_SAVEABLE_H
+