fish.yml biome groups

Explanation.md

So this is actually possible to achieve without any code modification, and with purely yaml features. I achieved this result by modifying my fish.yml like so:

biome-groups:
  ocean_beach: &ocean_beach
    ? OCEAN
    ? BEACH

And then in a particular fish:

cod:
  requirements:
    biome:
       <<: *ocean_beach

You can even extend this further by adding more info to the group later, i.e:

white_cod:
  requirements:
    biome:
       <<: *ocean_beach
       ? JUNGLE

Based on https://stackoverflow.com/questions/9254178/is-there-yaml-syntax-for-sharing-part-of-a-list-or-map

fish.yml

biome-groups:
  ocean_beach: &ocean_beach
    ? OCEAN
    ? BEACH
fish:
  Common:
    Cod:
      requirments:
        biome:
          <<: *ocean_beach
    White_Cod:
      requirments:
        biome:
          <<: *ocean_beach
          ? JUNGLE