grfcodec: 6.0.2-1~getdeb1

  * New upstream version
    - NFORenum specific changes:
      - Data file updates
        - Base costs.
        - Action5 type 15.
    - GRFcodec specific changes:
      - Fix encoding container v1 wrt. maximum size of verbatim data.
      - Fix container v2 tile decompression.