ENH: Enable registration of the IOOpenSlide module through CMake.
ENH: Enable registration of the IOOpenSlide module through CMake.

Change-Id: Ia2af2902c91d2b0f51d6d43535d4c483c39de1ed

BRAINSia/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,PlutoniumHeart/ITK,fbudin69500/ITK,thewtex/ITK,Kitware/ITK,zachary-williamson/ITK,PlutoniumHeart/ITK,InsightSoftwareConsortium/ITK,zachary-williamson/ITK,vfonov/ITK,fbudin69500/ITK,stnava/ITK,BRAINSia/ITK,thewtex/ITK,Kitware/ITK,BRAINSia/ITK,Kitware/ITK,blowekamp/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,zachary-williamson/ITK,stnava/ITK,zachary-williamson/ITK,zachary-williamson/ITK,spinicist/ITK,thewtex/ITK,LucasGandel/ITK,PlutoniumHeart/ITK,richardbeare/ITK,zachary-williamson/ITK,fbudin69500/ITK,LucasGandel/ITK,blowekamp/ITK,fbudin69500/ITK,spinicist/ITK,malaterre/ITK,spinicist/ITK,LucasGandel/ITK,stnava/ITK,LucasGandel/ITK,InsightSoftwareConsortium/ITK,BRAINSia/ITK,Kitware/ITK,BRAINSia/ITK,vfonov/ITK,richardbeare/ITK,hjmjohnson/ITK,vfonov/ITK,BRAINSia/ITK,blowekamp/ITK,stnava/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,malaterre/ITK,richardbeare/ITK,malaterre/ITK,stnava/ITK,zachary-williamson/ITK,blowekamp/ITK,hjmjohnson/ITK,spinicist/ITK,hjmjohnson/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,vfonov/ITK,spinicist/ITK,blowekamp/ITK,thewtex/ITK,fbudin69500/ITK,PlutoniumHeart/ITK,hjmjohnson/ITK,vfonov/ITK,hjmjohnson/ITK,spinicist/ITK,thewtex/ITK,malaterre/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,PlutoniumHeart/ITK,vfonov/ITK,stnava/ITK,blowekamp/ITK,Kitware/ITK,PlutoniumHeart/ITK,malaterre/ITK,vfonov/ITK,fbudin69500/ITK,zachary-williamson/ITK,LucasGandel/ITK,malaterre/ITK,spinicist/ITK,LucasGandel/ITK,fbudin69500/ITK,malaterre/ITK,richardbeare/ITK,zachary-williamson/ITK,fbudin69500/ITK,hjmjohnson/ITK,vfonov/ITK,blowekamp/ITK,blowekamp/ITK,Kitware/ITK,Kitware/ITK,stnava/ITK,spinicist/ITK,stnava/ITK,stnava/ITK,malaterre/ITK,malaterre/ITK,PlutoniumHeart/ITK,LucasGandel/ITK,richardbeare/ITK,LucasGandel/ITK,spinicist/ITK,hjmjohnson/ITK