[18FR] Initial commit: map, tiles, info

[Galatolol]

Before clicking "Create"

• Branch is derived from the latest master
• Code passes linter with docker compose exec rack rubocop -a
• Tests pass cleanly with docker compose exec rack rake

Implementation Notes

Explanation of Change

Initial commit for the game 18FR based on 1817. Map, tiles, phase and train table.

Screenshots

Hacks and assumptions

Private auction is skipped for now.