Add tests to CropsNH and improve common utilities

[C0bra5]

Summary

This PR adds 2 unit-testing modules to the codebase:

• The test module allows us to test components that don't require a loaded game.
• The functionalTest module allows us to test components that require a loaded game.

The common utility improvements mostly come from unit tests revealing odd edge cases, but there are a few improvements here and there since I'll be using this PR to add some things I'm targeting for 2.10, as I'm not planning to merge this PR for 2.9.

Summary of the more notable common utility changes

• Added a Reference field to know if we're in the regular game env or running unit tests without a loaded game.
• Meta map now has remove and removeWildcard functions to help remove things during load.
• SeedStats.DEFAULT_ANALYZED is now SeedStats.DEFAULT_ANALYZED_READONLY, and a constructor that takes only the analyzed status has been added to handle cases where the default value should remain mutable without affecting the readonly instance.
• When an unknown crop ID is detected, the default fallback crop is now standardized via CropsNHUtils.getFallbackCrop.

Test writing progress

With the introduction of these modules, I'm looking to start by adding unit tests for all the following items:

• CropsNHUtils.getSeedData
• CropsNHUtils.isStackValid (and its variation)
• CropsNHUtils.isStackInvalid (and its variation)
• CropsNHUtils.copyStackWithSize
• MetaMap
• MetaSet
• CropRegistry
• SeedData
• SeedStats
• CropCard
• IFDropTable
• SubSoilRequirement
• SoilList
• CompoundSoilList
• Min/MaxLightLevelRequirement
• World/MachineOnlyBreeding/GrowingRequirement
• BootProtectionRegistry
• ItemPotencyRegistry
• FluidPotencyRegistry

Checklist

• I have tested this PR in DevEnv
• I have tested this PR in Fullpack
• This PR is in compliance with the GTNH AI Policy
  • No AI used
• This PR requires another PR in order to merge
  • Fix getSeedData NPE (For 2.9) #241 will need to be merged in order for all the tests to pass

[C0bra5]

I'll draft this since I'll be adding more tests. This PR wasn't necessarily intended for 2.9, but I'll mark it as frozen for now since the changes will get large enough that it won't be a good idea to merge it into a feature-frozen project going forward.