Removes alcohol overdose

Created by: clusterfack

This is distinct from removing alcohol's toxicity. Alcohol poisons you in 4 stages each with varying effects of slurring speech up to damaging your liver and you with toxins. However deadrum/absinthe (which covers almost all alcohols) will begin toxing you above 30u, the reagents_overdose point, whereas normal alcohol shouldn't be damaging you until 450u.

This PR instead removes >30u toxins damage, and to compensate lowers the pass_out (normal toxins damage level) to 350u for variants of deadrum/absinthe instead while increasing the tox damage at that level.

Closes #7129 Fixes #7115 (closed)

Arthur wasn't making my suggested changes quickly enough/at all