ENH: new mean shift filter neighborhood rejection policy is coherent with edison non optimized mean shift filtering. Code cleanup must be done.

GetIterationOutput(). Updated tests accordingly.

TEST: In otbFusionOGRTileFilter, do the copy of the file QB_Toulouse_Ortho_withTiles.sqlite using itk::sys instead of CONFIG_FILE in the CMakeLists.txt

ENH: AddRANDParameter option in order to Set mersenne twister seed. if no value given rand gen is initialized with time dependant value.

ENH: Add new filter otbFusionOGRTileFilter which fusion polygons near tile border. It is used in Synthetize method of otbPersistentImageToOGRDataFilter

ENH: Add option 4Connected/8Connected to GDALPolygonize in LabelImageToVectorDataFilter and LabelImageToOGRDataSourceFilter