Add the ability to block claiming in plots which have too much Ocean or otherwise Unwanted biome in them.

[LlmDl]

Description:

The amount of allowed ocean is configurable, too much ocean and you don't get to claim it. Uses a predicate so there can be more rules added down the line if needed.

Additionally there is a separate UnwantedBiomes section that will also be able to block a list of biomes by name.

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New Nodes/Commands/ConfigOptions:

  - New Config Option: claiming.biome_rules.unwanted_biomes.enabled
    - Default: false
    - When true, unwanted biomes will be tested for when a player is claiming land.
  - New Config Option: claiming.biome_rules.unwanted_biomes.biomes
    - Default: "the_end,end_barrens,end_highlands,end_midlands,small_end_islands"
    - A comma separated list of biome names that will add up towards a townblock's un-claim-ability.
  - New Config Option: claiming.biome_rules.unwanted_biomes.threshold
    - Default: 55
    - The max amount of combined unwanted biomes as a percent, that will be allowed in plots being claimed by towns.
    - For example, if a townblock would be more than X percent ocean it will not be able to be claimed.
  - New Config Option: claiming.biome_rules.ocean_blocking.enabled
    - Default: false
    - When true, any wilderness plot which has more Ocean biome in it than the allowed threshold (see below,) will not be able to be claimed.
  - New Config Option: claiming.biome_rules.ocean_blocking.threshold
    - Default: 55
    - The max amount of combined ocean biomes as a percent, that will be allowed in plots being claimed by towns.
    - For example, if a townblock would be more than X percent ocean it will not be able to be claimed.

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Relevant Towny Issue ticket:

Closes #7136.

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• I have tested this pull request for defects on a server.

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