Direction sensitive weighting

Storing LocationRegistration.boundingBox
Confidence-Thresholded MotionVector collection

bugfix
Refactor MotionVectorStorage and MotionVector into separate h and cpp files.
+= showVectorsAsPath setting
+= VehicleSizeStorage and its application
Data export improved, drawing path, measured and mean bounding box.
Show mean bounding box size

Investigate mean motion vector size, set new threshold: 200->30