Tests DicomImageDecoderGDCM and the GDCM native library: writes a
synthetic multi-frame image (8 and 16 bit) with GDCM, uncompressed and
in several compressed transfer syntaxes, reads each file back through
DicomReader, and compares the pixels with the original values.
java maspack.image.dicom.DicomImageDecoderGDCMTest [library name]
The optional library name (e.g., gdcmjni.3.0.22.1) replaces the one
DicomImageDecoderGDCM loads, so that a new build of the library can be
tested before artisynth_core uses it.