a doohickey to generate SS13 webmaps, intended to replace the generateMaps script in https://github.com/Monkestation/ss13-webmap

it's much faster - it only parses each dme once, generates map files in parallel, and outputs both optimized pngs and webp files.

this uses the exact same config format (see config.example.json) and outputs the same file structure - should be drop-in compatible, pretty much.

speed example - 3 maps from OculisStation

MetaStation: dim_x=255, dim_y=255, dim_z=1
Void Raptor: dim_x=255, dim_y=255, dim_z=1
SerenityStation: dim_x=255, dim_y=255, dim_z=3
NebulaStation: dim_x=255, dim_y=255, dim_z=2
done :)
  config load:  322.30µs
  env parse:    7.09s
  render:       1.24s
  encode:       38.17s

note: encode time is almost entirely spent on png optimization - disabling pngs entirely and only using webps can result in much faster generation times