Changes the Gorlex Captain's coat and cap with sprites provided by Po…

…sitiveEntropy. (#2636)

Changes: Gorlex Captain's sprites with sprites given by PositiveEntropy
(All the credit goes to them, I just swapped the files)

## About The Pull Request

modified:   icons/mob/clothing/head.dmi
modified:   icons/mob/clothing/suit.dmi


## Why It's Good For The Game

prettier sprites make my head happy

## Changelog

:cl: PositiveEntropy

imageadd: The Gorlex 2nd Battlegroup clothing sprites have been updated!

/:cl: