tools/gst-inspect.c (print_all_uri_handlers): New function, prints a summary of what URI schemes are supported by wha...

Original commit message from CVS:
2008-11-17  Andy Wingo  <wingo@pobox.com>

* tools/gst-inspect.c (print_all_uri_handlers): New function,
prints a summary of what URI schemes are supported by what
elements.
(main): Plumb in support for --uri-handlers or -u, and fix the
argc check for -a and -u.