Fix reading logical variables in v7.3 MAT files
Fix reading logical variables in v7.3 MAT files

* src/mat73.c (Mat_H5ReadClassType): Added

* src/mat73.c (Mat_H5ReadDatasetInfo,Mat_H5ReadGroupInfo,
  Mat_H5ReadNextReferenceInfo,Mat_VarReadNextInfo73): Use new function
      Mat_H5ReadClassType to read the class type and set the data type

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