ENH: Enable SecondaryCaptureImagePlaneModel in GDCM

This enables support for reading image orientation patient and image
position patient from DICOM secondary capture images.

This addresses needs such as reading Visible Human DICOM color images in
3D Slicer:

  NA-MIC/ProjectWeek#875

and reading highdicom derived secondary capture DICOM in ITK-Snap:

  ImagingDataCommons/highdicom#247

Update the RGB tests' baseline that were using a .png baseline because they now
output spatial metadata.

Modules/IO/GDCM/src/itkGDCMImageIO.cxx

@@ -286,6 +286,8 @@ GDCMImageIO::Read(void * pointer)
   inputFileStream.close();
 
   itkAssertInDebugAndIgnoreInReleaseMacro(gdcm::ImageHelper::GetForceRescaleInterceptSlope());
+  // Secondary capture image orientation patient and image position patient support
+  itkAssertInDebugAndIgnoreInReleaseMacro(gdcm::ImageHelper::GetSecondaryCaptureImagePlaneModule());
   gdcm::ImageReader reader;
   reader.SetFileName(m_FileName.c_str());
   if (!reader.Read())
@@ -454,6 +456,8 @@ GDCMImageIO::InternalReadImageInformation()
 
   // In general this should be relatively safe to assume
   gdcm::ImageHelper::SetForceRescaleInterceptSlope(true);
+  // Secondary capture image orientation patient and image position patient support
+  gdcm::ImageHelper::SetSecondaryCaptureImagePlaneModule(true);
 
   gdcm::ImageReader reader;
   reader.SetFileName(m_FileName.c_str());

Modules/IO/GDCM/test/Baseline/Lily.mha.cid

@@ -0,0 +1 @@
+bafkreidhatfhe2gdne5k5pyw2rfvnuu3qmedytq7mrdjckmw6zrc5x3srq

Modules/IO/GDCM/test/CMakeLists.txt

@@ -397,7 +397,7 @@ function(AddComplianceTest fileName)
     --compareCoordinateTolerance
     0.001
     --compare
-    DATA{Baseline/Lily.png}
+    DATA{Baseline/Lily.mha}
     ${ITK_TEST_OUTPUT_DIR}/itkGDCM_ComplianceTestRGB_${fileName}.mha
     itkGDCMImageReadWriteTest
     DATA{Input/Lily/${fileName}.dcm}

Modules/IO/ImageBase/src/itkIOConfigure.h.in

@@ -21,6 +21,7 @@
 #cmakedefine ITK_SUPPORTS_WCHAR_T_FILENAME_CSTYLEIO
 #cmakedefine ITK_SUPPORTS_WCHAR_T_FILENAME_IOSTREAMS_CONSTRUCTORS
 #cmakedefine ITK_SUPPORTS_FDSTREAM_HPP
+#cmakedefine ITK_USE_SYSTEM_GDCM
 
 /*
  *  Enable the pre-registration of factories for specific image file formats