Allow ctype.h to be included on MSVC for snprintf source
Allow ctype.h to be included on MSVC for snprintf source

* visual_studio/matioConfig.h: Define HAVE_CTYPE_H to 1

MaartenBent/matio,NJannasch/matio,martinichka/matio-coder,martinichka/matio-coder,NJannasch/matio,CBL-ORION/matio,tbeu/matio,tbeu/matio,MaartenBent/matio,telehan/libmatio,martinichka/matio-coder,MaartenBent/matio,CBL-ORION/matio-sf-mirror,tbeu/matio,MaartenBent/matio,CBL-ORION/matio,tbeu/matio,telehan/libmatio,CBL-ORION/matio-sf-mirror