Provide a single flag to set the standard properly.
Currently, one needs to set three different flags to set the standard.
-DCMAKE_CXX_STANDARD=17 -DCMAKE_CXX_STANDARD_REQUIRED=On -DCMAKE_CXX_EXTENSIONS=Off
This quickly becomes tiresome on command line. It would be nice to provide a single option to set all the three. -DCMAKE_CXX_STANDARD_STRICT=17
for example is one such possibility.