Resolve "Emplace API inconsistent with ProcessorTrackerFeature/Landmark functions"

Closes #191 (closed)

include/core/problem/problem.h

@@ -38,6 +38,7 @@ enum Notification
 class Problem : public std::enable_shared_from_this<Problem>
 {
     friend SolverManager; // Enable SolverManager to acces protected functions (consumeXXXNotificationMap())
+    friend ProcessorMotion;
 
     protected:
         HardwareBasePtr     hardware_ptr_;
@@ -134,20 +135,23 @@ class Problem : public std::enable_shared_from_this<Problem>
                                           const std::string& _corresponding_sensor_name, //
                                           const std::string& _params_filename = "");
 
-    /**
-       Custom installProcessor to be used with parameters server
-    */
-    ProcessorBasePtr installProcessor(const std::string& _prc_type, //
-                                      const std::string& _unique_processor_name, //
-                                      const std::string& _corresponding_sensor_name, //
-                                      const paramsServer& _server);        
-    /** \brief Set the processor motion
+        /**
+           Custom installProcessor to be used with parameters server
+        */
+        ProcessorBasePtr installProcessor(const std::string& _prc_type, //
+                                          const std::string& _unique_processor_name, //
+                                          const std::string& _corresponding_sensor_name, //
+                                          const paramsServer& _server);
+    protected:
+        /** \brief Set the processor motion
          *
          * Set the processor motion.
          */
         void setProcessorMotion(ProcessorMotionPtr _processor_motion_ptr);
         ProcessorMotionPtr setProcessorMotion(const std::string& _unique_processor_name);
         void clearProcessorMotion();
+
+    public:
         ProcessorMotionPtr& getProcessorMotion();
 
         // Trajectory branch ----------------------------------