Those formats listed here are all this library can read. Feel free to increase them.
There is also OBJ supported for export of the map.
GoldSource (or GoldSrc) is game engine for games like:
BSP version 30 is current version of maps used by GoldSource.
WAD version 3 is format of file for storing textures and fonts for GoldSource games.
This code is distributed under MIT License.
You are free to do anything but must provide credit to the github page. There is no need for listing all contributors.