WIP: Read mapinfo and xlat from pk3 and merge data into map definition at runtime.

Goal: Merge metadata from ecwolf mapinfo and translator into the map definition of the project at runtime.

Xlat and mapinfo are currently parsed via nearley.js in wolf3d-data package.

This allows making changes to ecwolf files and not need to do too much double maintenance between the editor and the files. This is stuff like texture data for walls.

TODO: Import missing tiles/things from xlat into map definition