Some JS parsers for Tanki maps and related formats

Not complete and there's no new info

Current functionality:

• dump geometry in .obj format: node nodetest.js --help

Currently supported formats:

• maps: (no sprites)
  • .bin
  • .xml v1/v2
  • .xml v3 (geometry only)
• proplib metadata:
  • .xml
  • .json
  • .tara archives
• models: (no smooth group data, no norms)
  • .3ds (technically just subset of 3ds as it doesn't parses all of it)
  • .a3d v2

./structs contains some info about what a parser must spit out