STYLE: Catch exceptions by _const_ reference

Replaced `catch \((\S+) &` & with `catch \(const $1 &`, using Notepad++ v8.3.3,
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Follow-up to ITK pull request InsightSoftwareConsortium/ITK#3419
commit InsightSoftwareConsortium/ITK@f222a5e
(merged on May 11, 2022)

Author: N-Dekker

src/Bridge/VtkGlue/ConvertAnRGBitkImageTovtkImageData/Code.cxx

@@ -50,7 +50,7 @@ main(int argc, char * argv[])
   {
     filter->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/ConvertAnitkImageTovtkImageData/Code.cxx

@@ -48,7 +48,7 @@ main(int argc, char * argv[])
   {
     filter->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/ConvertRGBvtkImageDataToAnitkImage/Code.cxx

@@ -54,7 +54,7 @@ main(int argc, char * argv[])
     reader->Update();
     filter->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/ConvertvtkImageDataToAnitkImage/Code.cxx

@@ -56,7 +56,7 @@ main(int argc, char * argv[])
   {
     filter->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/VisualizeStaticDense2DLevelSetAsElevationMap/Code.cxx

@@ -93,7 +93,7 @@ main(int argc, char * argv[])
   {
     visualizer->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/VisualizeStaticDense2DLevelSetZeroSet/Code.cxx

@@ -93,7 +93,7 @@ main(int argc, char * argv[])
   {
     visualizer->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/VisualizeStaticMalcolm2DLevelSetLayers/Code.cxx

@@ -84,7 +84,7 @@ main(int argc, char * argv[])
   {
     visualizer->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/VisualizeStaticShi2DLevelSetLayers/Code.cxx

@@ -84,7 +84,7 @@ main(int argc, char * argv[])
   {
     visualizer->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Bridge/VtkGlue/VisualizeStaticWhitaker2DLevelSetLayers/Code.cxx

@@ -85,7 +85,7 @@ main(int argc, char * argv[])
   {
     visualizer->Update();
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;

src/Core/Common/ImageRegionOverlap/Code.cxx

@@ -140,7 +140,7 @@ main(int argc, char * argv[])
   {
     itk::WriteImage(image, out_file_name);
   }
-  catch (itk::ExceptionObject & error)
+  catch (const itk::ExceptionObject & error)
   {
     std::cerr << "Error: " << error << std::endl;
     return EXIT_FAILURE;