Add for randomizing agent order in RandomStarCraft2Env Multi map env

[Yuxin916]

Hi, Thank you again for your amazing work!

i am interested in reproducing the multi map training and then few shot learning. I noticed that in the RandomStarCraft2EnvMulti code, randomizing parts such as permutate_idx have all been commented. Any intuition on that? Or that means whether random or not works for the multi version?

[morning9393]

hiya~~ you may reach #1 for the reason~~thanks~