Thanoscore Easter Egg fix

ok so basically this is a fix for my first mod, known as "ThanosCore," where the easter egg achievement would accidentally be granted if you got a redstone block. I can no longer edit the mod itself BECAUSE WHY THE HECK NOT. Due to MCreator sucking, I don't know code :(

So I made this mod as a sort of temporary bandage until someone else eventually gets annoyed with it and makes a way better fix. All my fix does is add one command that any player can do, meaning it's ok to use in a hardcore no-cheats world

where if you simply type "/rtcegg" which stands for "Revoke Thanos Core Easteregg goof" 

which, when using that command, will only affect yourself; that will run "/advancement revoke Ii forgot this part)only @p orrrr @p only, thanoscore:funnyeastereggachievement" basically in latency terms is it removes the accomplished achievement, revoking it from @p being yourself

REMEMBER THIS MOD IS SPECIFICALLY FOR THANOSCORE AND WILL DO PRETTY MUCH NOTHING FOR ANYTHING ELSE