Climate updates

[EmptyStar]

Climate values were changed for multiple biomes in order to effect the following changes to biome distribution:

• Greater representation of Dorwinion biome which is often smaller and more thin than it should be
• More balanced distribution of grassland biomes
• Quicksand slightly more common

Changes were also made to climate noise values:

• Climate blend noise slightly reduced for slightly less chaotic biome borders
• Climate noise values moved to asuna_climate

Also introduced the /climate command to analyze the climate/biome of the player's current position; useful for debugging and bug reporting.