Gives VAISO Operatives Night Vision Optics (#6670)

# About the pull request

Grants VAISO Operatives a night vision optic helmet. 

# Explain why it's good for the game

The VAISO operatives were always intended to have access to night vision
(as evidenced by them still spawning with the old, but now
non-functional, Marsoc Night Vision Goggles), however the change to
Night Vison Goggles meant they were never updated to be granted Optics.
This PR does this.


# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
add: VAISO Covert Operatives will now spawn with a Night Vision Optic in
their helmet.
/:cl:

Co-authored-by: Steelpoint <[email protected]>

code/modules/gear_presets/contractor.dm

@@ -457,7 +457,7 @@
 	new_human.equip_to_slot_or_del(new /obj/item/device/binoculars/range, WEAR_IN_JACKET)
 	new_human.equip_to_slot_or_del(new /obj/item/storage/belt/gun/m4a3/m1911/socom, WEAR_WAIST)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/gloves/marine/veteran, WEAR_HANDS)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/marsoc, WEAR_IN_HELMET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/shoes/veteran/pmc/knife, WEAR_FEET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/sunglasses/sechud/tactical, WEAR_EYES)
@@ -562,7 +562,7 @@
 	new_human.equip_to_slot_or_del(new /obj/item/storage/belt/gun/m4a3/m1911/socom, WEAR_WAIST)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/gloves/marine/veteran, WEAR_HANDS)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/mask/gas/pmc, WEAR_FACE)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/marsoc, WEAR_IN_HELMET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/sunglasses/sechud/tactical, WEAR_EYES)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/shoes/veteran/pmc/knife, WEAR_FEET)
@@ -606,7 +606,7 @@
 	new_human.equip_to_slot_or_del(new /obj/item/weapon/gun/rifle/mar40/carbine/tactical, WEAR_J_STORE)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/gloves/marine/veteran, WEAR_HANDS)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/mask/gas/pmc, WEAR_FACE)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/marsoc, WEAR_IN_HELMET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/shoes/veteran/pmc/knife, WEAR_FEET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/welding/superior, WEAR_EYES)
@@ -653,7 +653,7 @@
 	new_human.equip_to_slot_or_del(new /obj/item/device/binoculars/range, WEAR_IN_JACKET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/gloves/marine/veteran, WEAR_HANDS)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/mask/gas/pmc, WEAR_FACE)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/marsoc, WEAR_IN_HELMET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/shoes/veteran/pmc/knife, WEAR_FEET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/hud/health, WEAR_EYES)
@@ -707,7 +707,7 @@
 	new_human.equip_to_slot_or_del(new /obj/item/storage/belt/gun/m4a3/m1911/socom, WEAR_WAIST)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/gloves/marine/veteran, WEAR_HANDS)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/mask/gas/pmc, WEAR_FACE)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/marsoc, WEAR_IN_HELMET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/shoes/veteran/pmc/knife, WEAR_FEET)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/hud/sensor, WEAR_EYES)
@@ -792,7 +792,7 @@
 	new_human.equip_to_slot_or_del(new headset_type, WEAR_L_EAR)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/glasses/night/experimental_mesons, WEAR_EYES)
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/mask/gas/pmc, WEAR_FACE)
-	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/covert, WEAR_HEAD)
+	new_human.equip_to_slot_or_del(new /obj/item/clothing/head/helmet/marine/sof, WEAR_HEAD)
 	new_human.equip_to_slot_or_del(new /obj/item/prop/helmetgarb/helmet_nvg/cosmetic, WEAR_IN_HELMET)
 	//body
 	new_human.equip_to_slot_or_del(new /obj/item/clothing/under/colonist/wy_davisone, WEAR_BODY)