cmake: add public domain dedication, and a note about the maintainer
cmake: add public domain dedication, and a note about the maintainer

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso