To simplify the addition of new block modules, add a script that generates
module_block.h automatically from the modules' source code.

This script assumes that the QEMU coding style rules are followed.
Signed-off-by: NMarc Marí <markmb@redhat.com>
Signed-off-by: NColin Lord <clord@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-3-git-send-email-clord@redhat.com
Reviewed-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NMax Reitz <mreitz@redhat.com>