Package handling improved.

Package handling improved.

Fix generate-parser-package (still needs more factoring out of
common parts with generate-parser-file)
Use :dst-package keyword everywhere.
Add dst-package argument to generated parse-* functions, because
they need to be told where to put generated symbols at call time.

Signed-off-by: Utz-Uwe Haus <lisp@uuhaus.de>