Chemical Substances of Varying Legality

Adds some vanilla-ish drugs:
- Vodka: an alchaholic beverage
- Powdered Ambrosia: crafted from ambrosia, doesn't spoil
- Back-in: An addictive urbworld stimulant painkiller, taken from an inhaler
- Celestite: Very rare and expensive glitterworld drug: permenantly increases armour and disease resistance
- Cigar: a higher quality, less adictive version of the joint that gives a bonus to charisma
- Herbal Penoxycyline: prevents sleeping sickness and malaria and can be made from a new 'medicinal Bryolux' crop
- Immunosuppressants: increases surgery success chance at the cost of reducing immunity gain speed for a few days
- Plate-Over: an uncommon drug that increases armour at the cost of speed and the user's comfort
- Over-Drive: a drug that massively increases the user's stats for 12 hours but withdrawal brings some rather unfavourable side-effects for the next season
- Painkillers: run-of-the-mill painkillers, reduces pain but also slightly reduces consciousness
- Lilac Lady: a strange alien drug from the psychite family that also increases psychic sensitivity