Build 53, new features & characters

//BUILD53//
//new features, assororted bug fixes and tuneups:

added playable characters : shooter and fireman [demo implementation]

added arcade to shopping district

added drug display cat to the housing district

added drug market display item, sold in upgrade store

tweaked chocobar to now add joy instead of max stamina

added warning to samplizer console in super wierdo zone
fixed part of samplizer?

updated bookshelf/magazine/book reading to reset hourssinceread and hourssincerelax variable

updated zomsim help/tutorial message formatting

updated system icons

added some lore to the arcade

added : trans flag to start screen! respect people or get dead!

still working on drug economy stuff:
previously implemented different drug pricing if market flooded, or market scarce
( but currently, all the prices are just using the same prices for each. but it's in )

similarly have added the framework for hunger, but not ready for using it