Adds The Qani-Laaca Sensory Computer and mephedrone. Ready for review into merge (#23926)

* Surely this will not have any critical balance implications

* Apply suggestions from code review

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

* oops

* marm fixes

* fixes signal

* how on earth did I do that

* adds twitch to nanocalcium

* respect armor, lowers throw

* IPC can use, fuck up heartless people

* no crawl slowdown / meth

* *slightly* turns down the drug effect

* renames it will deal with pr desc soon

* finishes it

* rnd version empable

* Apply suggestions from code review

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

* Nerfs twitches visuals, due to a reported novastation bug where the visuals would endlessly stack

* Apply suggestions from code review

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

* C-C-C-Changes

* Epilepsy Warning: Drug has vibrant visual effects!

* safety

* Apply suggestions from code review

Co-authored-by: DGamerL <108773801+DGamerL@users.noreply.github.com>

* removes twitch name, make mix explode

* oops

---------

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>
Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>
Co-authored-by: DGamerL <108773801+DGamerL@users.noreply.github.com>

code/game/objects/items/weapons/twohanded.dm

@@ -523,6 +523,8 @@
 		return
 	if(!isliving(target)) //no buff from attacking inanimate objects
 		return
+	if(user.reagents.get_reagent_amount("mephedrone") > 15) // No patrick, you do not get to be chainsaw stun immune and bullet immune at once
+		return
 	if(target.stat != DEAD) //no buff from attacking dead targets
 		user.apply_status_effect(STATUS_EFFECT_CHAINSAW_SLAYING)