Uueoa-Esa, Part 3: Ruin Assets (#18956)

Adds several new items and structures for use in Unathi ruins. These
include:
Several ancient Unathi clothing items, including two sets of armor.
Pillars and statues for ruin decoration.
Three ancient Unathi melee weapons.
Several flags/banners/tapestries.
Sarcophagi, complete with booby-traps.
An undetonated nuclear bomb, for, uh... don't worry about it.

Bomb sprite by @nauticall, other ruin sprites by Gecko

---------

Signed-off-by: RustingWithYou <63625389+RustingWithYou@users.noreply.github.com>
Co-authored-by: Fluffy <65877598+FluffyGhoster@users.noreply.github.com>

code/modules/vehicles/bike.dm

@@ -339,6 +339,16 @@
 	storage_type = /obj/item/storage/toolbox/bike_storage/speeder
 	bike_icon = "speeder"
 
+/obj/vehicle/bike/speeder/izweski
+	name = "hegemony speeder"
+	desc = "A Hephaestus-manufactured military speeder, used by the forces of the Izweski Hegemony."
+	icon_state = "heg_speeder_on"
+	bike_icon = "heg_speeder"
+	land_speed = 2
+	space_speed = 1
+	health = 250
+	maxhealth = 250
+
 /obj/vehicle/bike/monowheel
 	name = "adhomian monowheel"
 	desc = "A one-wheeled vehicle, fairly popular with Little Adhomai's greasers."