Split CP up into components that can be called individually

Found some more dead code to delete.  Added a couple of progress
printouts.

refs #86

trick_source/codegen/Interface_Code_Gen/PrintAttributes.cpp

@@ -400,6 +400,7 @@ void PrintAttributes::printIOMakefile() {
        return ;
     }
 
+    std::cout << "Creating/updating io_src Makefile" << std::endl ;
     makefile_io_src.open("build/Makefile_io_src") ;
 
     makefile_io_src << "TRICK_IO_CXXFLAGS := \\" << std::endl ;