Suspicious stew trade fix [achievements enabled]

Discord: https://discord.gg/PXDSTdBMda

The report for this error is on Mojira: https://bugs.mojang.com/browse/MCPE-134483

Tired of trading emeralds for a simple Suspicious Stew with only the Night Vision effect? This addon fixes one of the most notable omissions in the Minecraft Bedrock/Pocket Edition villager economy. With the "Suspicious Stew Trade Fix," trading with the Expert Farmer villager has been expanded and diversified. Now, when trading for Suspicious Stew, you have a chance to receive one of six different types of stew, each with a distinct potion effect—just as it should be.

Types stew suspicious is:

NIGHT VISION
JUMP BO0ST
WEAKNESS
BLINDCNESS
POISON
SATURATION