API C WeeklyRewards.GetNextMythicPlusIncrease

Needs summary.
 hasSeasonData, nextMythicPlusLevel, itemLevel = C_WeeklyRewards.GetNextMythicPlusIncrease(mythicPlusLevel)
==Arguments==
:;mythicPlusLevel:
==Returns==
:;hasSeasonData:
:;nextMythicPlusLevel:
:;itemLevel:
==Patch changes==