Added and Adjusted Chemicals

Fixes with the changes of eyes to internal organs with Imidazoline and the surgery.

New chemicals:
Peridaxon, Potassium Chloride, and Potassium Chlorophoride. Peridaxon: Internal organ healing chemical; 2Bicard+2Clonex(plasma catalyst). Potassium Chloride: Stops hearts for medical in overdose; Salt+Potassium, Potassium Chlorophoride: Stops hearts right proper; PotassiumChloride+Plasma+Chloral Hydrate.

Chloral Hydrate and Soporific changes
Made chloral hydrate less instakill(nerfed), but a toxic dropper without blackscreen. Soporific buffed, but less blackscreen sleeping applied.

Conflicts:
	code/modules/reagents/Chemistry-Reagents.dm
	code/setup.dm