Initial work on combining cl-plplot and commonqt
First success at combining cl-plplot and common-qt.
Add README file explaining how to get started.
Some fiddling with what can be excluded and still have everything work.
Add system and package definition files to simplify the configuration.
Update README.md. Get Qt example to match PLplot equivalent example.
Fix merge conflict.
Update project status.
Change boolean variable name to bool to avoid shadowing the boolean type.