[Item] Add Deep Sea Scale & Deep Sea Tooth items

[Madmadness65]

What are the changes the user will see?

Adds the Deep Sea Scale and Deep Sea Tooth species-specific items for Clamperl in the Great tier, which also comes with an evolution method change for it to no longer be gender-specific, but instead require one of the Deep Sea items to be held before using a Linking Cord.

Why am I making these changes?

Clamperl's special boosting items were wanted like the other species-specific held items, they just needed a bit more added to it so they could function as part of its evolution too. I am aware that this increases the difficulty in evolving Clamperl, but the boosts the Deep Sea items give, alongside other niche items like Eviolite, and the Deep Sea items specifically being in the Great tier, I feel make up for the additional time spent finding the second item.

What are the changes from a developer perspective?

Two new entries in the SpeciesStatBoosterItem list for Deep Sea Scale and Deep Sea Tooth, as well as Clamperl's evolution condition being changed to requiring an instance of one of the Deep Sea items. Species stat booster items have been split between regular in the Great item pool (currently just the Deep Sea Scale and Tooth) and rare in the Ultra item pool (everything else, unchanged from a player's perspective). This should not affect any existing species stat booster items in existing save files.

Screenshots/Videos

deepsea.mp4

How to test the changes?

Change the item reward override to either [{name: "SPECIES_STAT_BOOSTER", type: "DEEP_SEA_SCALE"}, {name: "EVOLUTION_ITEM", type: 1}] or [{name: "SPECIES_STAT_BOOSTER", type: "DEEP_SEA_TOOTH"}, {name: "EVOLUTION_ITEM", type: 1}]. Clamperl will not be able to use a Linking Cord until it has one of the Deep Sea items.

Checklist

• I'm using beta as my base branch
• There is no overlap with another PR?
• The PR is self-contained and cannot be split into smaller PRs?
• Have I provided a clear explanation of the changes?
• Have I tested the changes manually?
• Are all unit tests still passing? (npm run test)
  • Have I created new automated tests (npm run create-test) or updated existing tests related to the PR's changes?
• Have I provided screenshots/videos of the changes (if applicable)?
  - [ ] Have I made sure that any UI change works for both UI themes (default and legacy)?

Are there any localization additions or changes? If so:

• Has a locales PR been created on the locales repo?
  • If so, please leave a link to it here: Add entries for Deep Sea Scale & Tooth pokerogue-locales#94
• Has the translation team been contacted for proofreading/translation?

[Blitz425]

Would like for the items to be made Great tier