What Does This PR Do

Refactors the borg gripper, mostly the afterattack chain, it's nicer now.

Borgs with storage-capable items such as the trash bag or mining satchel will now dump the contents of those items on the floor when gibbed (in line with how the service borg tray is handled already).

Adds the mining gripper. It can hold 3 things:

• Goliath Plates: To allow the borg to armour itself without assistance (because even if the miners ignore the borg, the fauna won't.)
• Bluespace Shelter Capsule: Allows the borg to deploy shelters for other miners, perhaps just in the nick of time to save one from an untimely death. As mining borgs are already immune to ash storms, they don't get much personal benefit from this, but it helps them help the mining crew.
• Pickaxe: Because it's funny to let the borg slave away with an actual pickaxe.

This also fixes #25512 (and fixes #25648, which is a duplicate issue).

Why It's Good For The Game

Nicer code is good.

Considering that when carbons are gibbed, they drop the stuff they're carrying, it makes sense to extend this to the non-module/component items a borg might have too.

Mining borgs have it rough, they aren't ignored by fauna, and are also locked out of the lavaland combat rewards entirely. This throws them a little bone to gnaw on.
Bug bad, oops.

Testing

It compiled.
Made one of every borg with every variant of storage-capable item. Filled them up, gibbed them, the items all dropped.
Became mining borg. Was able to grab a pickaxe and mine. Was able to make shelter. Was able to grab goliath plating and armour myself with it. Tested and verified the armour actually worked.
Became Service, Medical, and Enginering borg. Verified that all their gripper functions still worked as before.

Changelog

🆑
add: Adds a mining gripper for the mining borg. It can hold and use goliath plates (for self armouring), shelter capsules (for shelter), and pickaxes (for old fashioned mining).
/:cl: