Nova Port - Roundstart bag variations (#5341)

## About The Pull Request
Ports some bags for roundstart selection from Nova Sector. Same amount
of space as any other bag ever.
## Why It's Good For The Game
Cool bags. Different aesthetics, if desired.
## Proof Of Testing
works on my machine or something. Screenshot below.
<details>
<summary>Screenshots/Videos</summary>
<img width="1287" height="735" alt="image"
src="https://github.com/user-attachments/assets/d7ecf201-1442-4f80-99cd-a116ea04de51"
/>

</details>

## Changelog
🆑
add: Front pack, waist pack and belt pack for selection in character
preferences, found under the regular bag selection. Despite the names,
still equipped on your back.
image: Supporting sprites for the new roundstart bags
/🆑

---------

Co-authored-by: Waterpig <49160555+Majkl-J@users.noreply.github.com>

code/modules/client/preferences/clothing.dm

@@ -31,9 +31,14 @@
 		DSATCHEL,
 		DDUFFELBAG,
 		DMESSENGER,
+		//BUBBER EDIT BEGIN
 		FBACKPACK,
 		FSATCHEL,
 		FMESSENGER,
+		TPACKWAIST,
+		TPACKBELT,
+		TPACKCHEST,
+		//BUBBER EDIT END
 	)
 
 /datum/preference/choiced/backpack/create_default_value()
@@ -51,12 +56,19 @@
 			return /obj/item/storage/backpack/duffelbag
 		if (GMESSENGER)
 			return /obj/item/storage/backpack/messenger
+			//BUBBER EDIT BEGIN
 		if (FBACKPACK)
 			return /obj/item/storage/backpack/industrial/frontier_colonist
 		if (FSATCHEL)
 			return /obj/item/storage/backpack/industrial/frontier_colonist/satchel
 		if (FMESSENGER)
 			return /obj/item/storage/backpack/industrial/frontier_colonist/messenger
+		if (TPACKWAIST)
+			return /obj/item/storage/backpack/waist_pack
+		if (TPACKBELT)
+			return /obj/item/storage/backpack/storage_belt
+		if (TPACKCHEST)
+			return /obj/item/storage/backpack/chest_pack
 
 		// In a perfect world, these would be your department's backpack.
 		// However, this doesn't factor in assistants, or no high slot, and would