Fix for vehicle parts not displaying properly
* Note: Will require tileset config files to be updated to the jsonized vehicle_part id values along with a "vp_" prefix to reduce potential conflicts later.
in progress
Tweak input polling in precipitanimation loop to consume repeated keypresses properly.
fix for fix, actually works this time! I swear!
Does not allow for open or damaged tiles. That will need to be added in a separate PR as an addendum to the tileset definition format
Added initial_season option
Added initial_season option
Added support for spawn rules limiting to time of day and season of year.
Added docs for new mongroup rules
Vehicle: Fix no cargo bug with fancy rng item damage. Also add check for invalid cargo spots in .json load
Let's start getting weights in order!
More re-sanifications.
More weights!
More weight stuff.
Mosquitos now appear in forest and field locations during twilight hours.
Weight is done!
Fixing colors.

There's like a hundred cases where the description says 'this black
so-and-so' and the item's color is pink or something. It's ridiculous.
Colors are done!
Coverage pass.
Fixing thickness silliness.
Fixing further silliness.