Implement a suggestion from kerry.t.lee@nasa.gov:

//add implementation of new Set method in TDatime.cxx
void TDatime::Set(const char* sqlDateTime)
   // Expects as input a string in SQL date/time compatible format, like:
   // yyyy-mm-dd hh:mm:ss.


git-svn-id: http://root.cern.ch/svn/root/trunk@18638 27541ba8-7e3a-0410-8455-c3a389f83636