Adds New Changeling Ability: Miasmic Mist

[ItsMarmite]

What Does This PR Do

This PR adds a new defensive changeling ability, Miasmic Mist. Costing 2 DNA to purchase, and taking 15 chemicals per use.

Miasmic Mist will produce obfuscating purple smoke that will slur the speech, and blur the vision of those who do not wear gas masks while in it. Additionally it will cause minor toxin and cause them to drop items from their hands.

Miasmic Mist immunity can also be gotten from purchasing the ability. This does mean the ability affects changelings who have not purchased Miasmic Mist.

Why It's Good For The Game

Changeling heavily lacks a lot of abilities for disengaging and dealing with large groups. My hope with this ability is it will allow changelings to cover their tracks more, and allow them more leeway in avoiding 9 man security baton beatdowns by hiding in THE FOG. Additionally providing synergy with augmented eyesight, which allows a changeling to see while within THE FOG.

Testing

https://github.com/ParadiseSS13/Paradise/assets/85680653/4225a183-1ba4-4d94-a6ec-387767193b7c

Changelog

:cl: add: Adds new defensive Changeling ability, Miasmic Mist. An AOE poison cloud that blinds its victims. /:cl: