Write scopes in id order, so we don't need to write out the id itself. Add the

Write scopes in id order, so we don't need to write out the id itself. Add the
size of the scope to the output file and a flag bit that tells us if the scope
has a size.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5097 b7a2c559-68d2-44c3-8de9-860c34a00d81