package/libcgi: bump version to 1.3.0

package/libcgi: bump version to 1.3.0

Removed patches applied upstream:
https://github.com/rafaelsteil/libcgi/commit/d7cf836905ab8a46034295023a1a5677dd4c7ce5
https://github.com/rafaelsteil/libcgi/commit/58edd5089011f7d9846e9336670f90d135d1c580

Added upstream-provided md5 hash.

Upstream moved and renamed license file COPYING and added MIT license
file:
https://github.com/rafaelsteil/libcgi/commit/86e88b4b050fa5db1a5062e74429170e49dbde5a

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Acked-by: Alexander Dahl <post@lespocky.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>