package/libudfread: new package

package/libudfread: new package

Upcoming release of kodi 19.0 will add libudfread as optional
dependency: https://github.com/xbmc/xbmc/pull/17612

Please note that the removed support of libudf was added on the master
branch so we do not need to backport udf support to kodi 18.x:
https://github.com/xbmc/xbmc/commit/558b54a79eff717237919afe453ec09e0851d3a5

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[yann.morin.1998@free.fr: two spaces in hash files]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>