Fix unused-local-typedefs warning in CSFLSRobustStatSegmentor3DLabelMap

This commit fixes the following warning:

In file included from /home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.h:174:0,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.txx:10,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.h:23,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/LASegmenter.cxx:10:
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx: In member function ‘void CSFLSRobustStatSegmentor3DLabelMap<TPixel>::ComputeZM()’:
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx:841:39: warning: typedef ‘TIndex’ locally defined but not used [-Wunused-local-typedefs]
         typedef ImMaskType::IndexType TIndex;
Fix unknown-pragmas warning in ZernikeMoments.h

This commit fixes the following warning:

In file included from /home/jchris/Projects/LASegmenter/CLILASegmenter/ShapeMoments/ZernikeDescriptor.h:52:0,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.h:5,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/LASegmenter.cxx:10:
/home/jchris/Projects/LASegmenter/CLILASegmenter/ShapeMoments/ZernikeMoments.h:43:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable : 4267)
 ^
Fix narrowing warning in SFLSRobustStatSegmentor3DLabelMap_single

In file included from /home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.h:174:0,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.txx:10,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.h:23,
                 from /home/jchris/Projects/LASegmenter/CLILASegmenter/LASegmenter.cxx:10:
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx: In instantiation of ‘void CSFLSRobustStatSegmentor3DLabelMap<TPixel>::ComputeZM() [with TPixel = float]’:
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx:635:23:   required from ‘void CSFLSRobustStatSegmentor3DLabelMap<TPixel>::doSegmenation() [with TPixel = float]’
/home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.txx:45:5:   required from ‘typename ImMaskType::Pointer LASeg::SegWithRSSandZM(typename itk::Image<inputPixel_t, 3u>::Pointer, typename ImMaskType::Pointer, double, double, double, double, double, int, int, std::string) [with PixelType = float; ImMaskType = itk::Image<char, 3u>; typename ImMaskType::Pointer = itk::SmartPointer<itk::Image<char, 3u> >; typename itk::Image<inputPixel_t, 3u>::Pointer = itk::SmartPointer<itk::Image<float, 3u> >; std::string = std::basic_string<char>]’
/home/jchris/Projects/LASegmenter/CLILASegmenter/./SegSrc/LASeg.txx:96:145:   required from here
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx:829:91: warning: narrowing conversion of ‘((bound[1] - bound[0]) + 1l)’ from ‘long int’ to ‘itk::Size<3u>::SizeValueType {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Wnarrowing]
     TSize size = {bound[1] - bound[0] + 1, bound[3] - bound[2] + 1, bound[5] - bound[4]+ 1};
                                                                                           ^
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx:829:91: warning: narrowing conversion of ‘((bound[3] - bound[2]) + 1l)’ from ‘long int’ to ‘itk::Size<3u>::SizeValueType {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Wnarrowing]
/home/jchris/Projects/LASegmenter/CLILASegmenter/./RSSZM/SFLSRobustStatSegmentor3DLabelMap_single.txx:829:91: warning: narrowing conversion of ‘((bound[5] - bound[4]) + 1l)’ from ‘long int’ to ‘itk::Size<3u>::SizeValueType {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Wnarrowing]
Merge pull request #1 from jcfr/fix-warnings

Fix warnings