Add support for low tolerance

[Regisle]

This applies only if the number of poisons you could apply are less than 1 AND the enemy config only has 1 poison on them maximum

This does require me to move a bunch of the poison variables, and I am unsure if that breaks anything, from what I can tell it doesnt/shouldnt but should have someone else look

build to test with : https://pobb.in/0I6xHsxW0y86

[deathbeam]

Can you also add override for this in config? For alchemist mark only thing that matters is the poison duration being lower than the actual mark most of the time (you still stack faster poisons for more mark dps but you dont have to go all the way to being able to apply only 1 poison because you mostly care only about poison dps + mark dps).

Example: https://pobb.in/5LXY2f3VWLEL , i can definitely apply more than 1 poison here but its valid low tolerance + mark setup.

EDIT: Or maybe make it apply to poison DPS always and then apply it to total damage per poison only when your poison duration is lower? or something like that

[Regisle]

Can you also add override for this in config?

done

[QuickStick123]

Fixes #3750