Resolve "Emplace API inconsistent with ProcessorTrackerFeature/Landmark functions"

Closes #191 (closed)

include/core/processor/track_matrix.h

@@ -78,8 +78,9 @@ class TrackMatrix
         TrackMatrix();
         virtual ~TrackMatrix();
 
-        void            newTrack    (CaptureBasePtr _cap, FeatureBasePtr _ftr);
-        void            add         (size_t _track_id, CaptureBasePtr _cap, FeatureBasePtr _ftr);
+        void            newTrack    (FeatureBasePtr _ftr);
+        void            add         (const SizeStd& _track_id, const FeatureBasePtr& _ftr);
+        void            add         (const FeatureBasePtr& _ftr_existing, const FeatureBasePtr&  _ftr_new);
         void            remove      (FeatureBasePtr _ftr);
         void            remove      (const SizeStd&  _track_id);
         void            remove      (CaptureBasePtr _cap);