rooms definition: parse it with a proper parser

[meszaros-lajos-gyorgy]

Work have already started on replacing the hacked together version of src/prefabs/rooms/loadRooms.ts with a proper tokenizer and parser, which can be seen here: https://github.com/arx-tools/arx-level-generator/tree/main/src/prefabs/rooms/parser

This should make the language of rooms files more future proof and extendable.

[meszaros-lajos-gyorgy]

the POC is being written in arx-map-boilerplate repo's tokenize branch