[Suggestion] Achievement mechanics for MythicMobs

Basically, I'd love if there were a mechanic in MythicMobs which granted an achievement or increment towards one for the targeted player.

SlimeKillCredit: Skills:

• grantAchievement{n=SLIME_KILL_1} @PIR{r=100;conditions=[ - hasaura{n=SlimeTagged} true ]}