Author: Kacper Rokicki
MDL-75292 assign: Add "Graded" filter to assignment submission table
http://git.moodle.org/gw?p=moodle.git;a=commit;h=65c7be536f86c47c4c8738666187ad1ca94564bc
http://github.com/moodle/moodle/commit/65c7be536f86c47c4c8738666187ad1ca94564bc
+ 5.0 en [filtergraded,mod_assign]