Inprove file organization

include/core/frame/frame_base.h

@@ -62,15 +62,20 @@ class FrameBase : public NodeBase, public HasStateBlocks, public std::enable_sha
                   const std::list<VectorXd>& _vectors);
 
         ~FrameBase() override;
+
+        // Add and remove from WOLF tree ---------------------------------
+        template<typename classType, typename... T>
+        static std::shared_ptr<classType> emplaceFrame(TrajectoryBasePtr _ptr, T&&... all);
+
+        void link(TrajectoryBasePtr);
+        void link(ProblemPtr _prb);
+
         virtual void remove(bool viral_remove_empty_parent=false);
 
         // Frame properties -----------------------------------------------
     public:
         unsigned int id() const;
 
-        // link to problem
-        void link(ProblemPtr _prb);
-
         // Frame values ------------------------------------------------
     public:
         void        setTimeStamp(const TimeStamp& _ts);
@@ -105,15 +110,14 @@ class FrameBase : public NodeBase, public HasStateBlocks, public std::enable_sha
 
         FactorBasePtr getFactorOf(const ProcessorBasePtr _processor_ptr) const;
         FactorBasePtr getFactorOf(const ProcessorBasePtr _processor_ptr, const std::string& type) const;
-
         void getFactorList(FactorBasePtrList& _fac_list) const;
+
         unsigned int getHits() const;
         const FactorBasePtrList& getConstrainedByList() const;
         bool isConstrainedBy(const FactorBasePtr& _factor) const;
-        void link(TrajectoryBasePtr);
-        template<typename classType, typename... T>
-        static std::shared_ptr<classType> emplaceFrame(TrajectoryBasePtr _ptr, T&&... all);
 
+
+        // Debug and info -------------------------------------------------------
         virtual void printHeader(int depth, //
                                  bool constr_by, //
                                  bool metric, //