[PORT] Add mantis blades (new traitor item)

[MiraHell]

What Does This PR Do

Adds a new traitor item acquirable through any uplink for 60 TC. For your TC, you receive a box. Inside the box are two autodocs, one for each arm. Once used, they will implant a set of two retractable blades into your body. The Syndicate version deals 20 damage and has 30 armor penetration, while the NT version deals 18 damage and has no armor penetration.
These blades can parry non-projectile attacks, with the Syndicate version having a 75% uptime and the NT version having a 60% uptime. With a cooldown of 1.5 seconds (every second attack), both blades will attack at once. They can also pry open doors when used together. A Nanotrasen version is included and can be printed on a protolathe with Syndicate Tech level 6.

Refactors TRAIT_FORCES_OPEN_DOORS_ITEM into a component at the request of the maintainer

Why It's Good For The Game

A new traitor item with cyberpunk vibes and new double attack mechanics, a more stealthy but weaker weapon than the dsword or chainsaw.

Images of changes

On the right is the NT version and the left is syndie

Testing

Spawned uplink, bought mantis blades kit, implanted myself, spawned dummy, killed it with blades, spawned airlock, pryed it with two blades. Printed the NT version on protolate, implanted the monkey with it.

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Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.
  

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Changelog

🆑
add: Added new traitor item: mantis blades, NT version included on syndicate tech 6
/:cl:

original author: EdgeLordExe
tgstation/tgstation#55936
author of yogstation port: enkidienne
yogstation13/Yogstation#11946

[Toastical]

Is the double attack cooldown intended to be separate to each arm? Switching your attacking hand allows you to do 2 double attacks back to back consistently.

I cannot tell if the video works.

2024-12-09.16-32-23.mp4

[MiraHell]

Is the double attack cooldown intended to be separate to each arm? Switching your attacking hand allows you to do 2 double attacks back to back consistently.

It's not intended, thanks for noticing. I'll try to redo the double attack, linter doesn't like the attack call in pre_attack

I cannot tell if the video works.

Works

[MiraHell]

I need help with the attack chain, I don't understand how it needs to be done

[DGamerL]

I'll try to help tomorrow!

[MiraHell]

Thanks Warriorstar for the help with nested types. I'm also planning to add the ability to pry open doors with two blades, and then the PR will be ready for review.

[MiraHell]

Ready for review ✨

[DGamerL]

Sorry that it's taken so long, I'll take a proper look tomorrow, happy new years!

[MiraHell]

Draft while I'm working on the component

[lewcc]

Great job with the component! I have a few pieces of feedback, but in general it looks good.