message: Use building type from lib
diff: +type Building = import('../lib/building/_common').Building
  +
  interface Setup {
  createBuilding(town: Town, type?: string, base?: Partial<Building>): Building
  }
  -
  -interface Building {
  - type: string
  - lighting: string
  - outside: string
  - material: any
  - [key: string]: any
  -}
  