[CMake] FIND_LIBRARY debug/release

[Jacob Foshee]

I am working on updating the FindDCMTK.cmake module.
It includes a lot of commands like the following:
FIND_LIBRARY( DCMTK_dcmimgle_LIBRARY dcmimgle
  ${DCMTK_DIR}/dcmimgle/libsrc
  ${DCMTK_DIR}/dcmimgle/libsrc/Release
  ${DCMTK_DIR}/dcmimgle/libsrc/Debug
)

Shouldn't FIND_LIBRARY look in the "release" and "debug" subfolders by
default?  It does not seem to.