Fix biker coat loadout

[whatston3]

About the PR

Fixes the biker coat and commented out R&D science coat loadouts.

Why / Balance

Bug from the upstream merge, no items in the actual loadout. These two were the only ones with remaining startingGear artifacts. My mistake.

How to test

1. Select contractor/pilot/merc loadouts, go to the "outer clothing" tab, select the biker jacket.
2. Spawn. You should be equipped with a biker jacket if you can afford it.

Media

Requirements

• I have read and I am following the Pull Request Guidelines. I understand that not doing so may get my pr closed at maintainer’s discretion
• I have added screenshots/videos to this PR showcasing its changes ingame, or this PR does not require an ingame showcase

Breaking changes

Changelog

🆑

• fix: The biker jacket is purchasable again from Contractor, Pilot, and Merc loadouts.

[ErhardSteinhauer]

Bad to the bone
B-b-b-b-b-b-b-bad