WIP: Get all tests working

This is almost done, except that the itkSCIFIOImageInfo tests are
erroneously passing the wrong number of parameters. Probably CMake is
preserving the quotes and thus the arguments (e.g., "1 1 1") are being
passed as a single argument rather than the three args that are needed?
Fix itkSCIFIOImageInfoTest argument handling

This commit works around the fact that the CMakeLists.txt (as written)
passes all arguments as a single quoted argument. There is almost
certainly a better way to do it in CMake, but I don't know how, so we
split the argument in C++ land instead.

This change also assigns the SCIFIO ImageIO to the reader properly.
Assert that dimensional sizes match

This change also fixes the dimensional ordering to be the same as the
SCIFIO ImageIO plugin (ZTC), and adds sizeX and sizeY into the mix, too.
Make debugging statements a bit easier to read

Ultimately we will probably want to remove these, but they are useful
for now, until we have finalized all the parameters we want to assert
match their expected values.
Merge branch 'fix-tests'

This branch fixes the unit tests to all be included, and all pass. The
breadth of the tests is far from complete, but we do test the basic
dimensional sizes (in itkSCIFIOImageInfoTest), as well as correctness of
pixel values when converting images of various types (itk::Image with a
PixelType of unsigned char, itk::Image with a PixelType of
itk::RGBPixel<unsigned char>, and itk::VectorImage) using SCIFIO.