Explo (#17473)

* exploborg chassis for downstream

made by blitz on chomp, added per request

* new explo borg chassis per request(bulwark)

code/modules/mob/living/silicon/robot/subtypes/exploration/exploration-sprites.dm

@@ -35,6 +35,16 @@
 	icon_x = 32
 	pixel_x = 0
 
+/datum/robot_sprite/dogborg/tall/explorer/bulwark
+	name = "Bulwark"
+	sprite_icon = 'icons/mob/robot/tallrobot/tallrobots.dmi'
+	sprite_icon_state = "bulwark"
+	has_eye_light_sprites = FALSE
+	rest_sprite_options = list("Default")
+	icon_x = 32
+	pixel_x = 0
+
+
 /* placeholder
 /datum/robot_sprite/dogborg/tall/explorer
 	module_type = "Exploration"