Compatibility project almost complete

As the much villified theme for star trek enterprise says "its been a long road getting from there to here" i am almost done with all of the work that needed to be done to get us to Catalina compatibility in GNUstep. The reason this is still significant is because Apple hasn't made many changes to either the Foundation or AppKit APIs since then. I have been workinf hard over the last three years. All of the new classes are fully tested. Once this effort is completed I am going to focus on printing, which has always been a problem in GS. And possibly a "reference" distribution.