added Cascade main body, but just as template

Framework/Cascade/Cascade.h

+#ifndef _include_Cascade_h_
+#define _include_Cascade_h_
+
+namespace cascade {
+
+  template<typename Processes, typename Trajectory, typename Stack>
+  class Cascade {
+    
+  public:
+    Cascade();
+
+    void Init();
+    void Run();
+    void Step(Particle& particle);
+
+  private:
+    Stack fStack;
+    Processes fProcesseList;
+    
+  };
+  
+}
+
+#endif