Adds fat chemist jumpsuits

Created by: Furbeh

"Fixes" #7116 (closed) Fat chemists now spawn in with a fat chemist jumpsuit that currently has no texture.

If anyone has any issue with it having no texture please look at the top of #9139 for the other jobs that currently don't have fat jumpsuit textures.

_{also I didn't realise noir detective suits were a child of detective suits so I am also adding their texture to suit_fat.dmi}