-Implementing new Logic class as input interface to all Luppp functionality

src/logic.hxx

@@ -0,0 +1,28 @@
+
+#ifndef LUPPP_LOGIC_H
+#define LUPPP_LOGIC_H
+
+/** Logic
+ *  This class contains an interface exposing most functionality in Luppp. The
+ *  interface is used to have one central place from where each controller can
+ *  interact with Luppp using the same function calls.
+ * 
+ *  This class should be used for input from any device. The interface is
+ *  deliberatly specific with regards to scheduling events: controllers should
+ *  NOT attempt to schedule changes: use the provided functions directly when
+ *  events occur on a controller.
+ * 
+ *  The ControllerUpdater class is the opposite of this class, it provides
+ *  feedback of each event that occurs.
+ * 
+ *  Note: The GridLogic class provides the interface to scene selection / state.
+**/
+class Logic
+{
+  public:
+    Logic()
+    
+    void 
+};
+
+#endif // LUPPP_LOGIC_H