FindOpenEXR.cmake: Add detection of debug builds (#2505)
FindOpenEXR.cmake: Add detection of debug builds (#2505)

Debug builds of OpenEXR have an _d suffix (on Windows at least). This patch adds these file names to the searched library names.
lgritz/oiio,OpenImageIO/oiio,lgritz/oiio,OpenImageIO/oiio,OpenImageIO/oiio,OpenImageIO/oiio,lgritz/oiio,lgritz/oiio