Adds new combat cybernetic implant (#73043)

## About The Pull Request

Adds arm empower implant to the game - a cybernetic implant that will
make your punches deal 13 damage(normal human attacks deal between 1 and
10 damage), and throw your target away(doesn't work if you are lying
down) like a baseball bat does. It is inserted into your arm, and it
works only for the arm it is inserted into.

As an EMP effect it would cause you to fall under your target, or get
paralyzed due to muscle spasms.

## Why It's Good For The Game

Expands the implant system and adds more things to stuff into yourself
if you want to roleplay as a cool robo man.

## Changelog

🆑
add: Added a new cybernetic implant that increases punch damage of a
human
/🆑

---------

Co-authored-by: san7890 <the@san7890.com>

code/modules/cargo/packs/medical.dm

@@ -156,3 +156,10 @@
 	contains = list(/obj/item/clothing/under/rank/medical/chief_medical_officer/turtleneck,
 					/obj/item/clothing/under/rank/medical/chief_medical_officer/turtleneck/skirt,
 				)
+
+/datum/supply_pack/medical/arm_implants
+	name = "Strong-Arm Implant Set"
+	desc = "A crate containing two implants, which can be surgically implanted to empower the strength of human arms. Warranty void if exposed to electromagnetic pulses."
+	cost = CARGO_CRATE_VALUE * 6
+	contains = list(/obj/item/organ/internal/cyberimp/arm/muscle = 2)
+	crate_name = "Strong-Arm implant crate"