[Enhancement] Add several new trainer types

[Madmadness65]

What are the changes the user will see?

This adds the Aroma Lady, Bird Keeper, Bug Catcher, Camper, Collector, Dragon Tamer, Fairy Tale Girl, Interviewers, Mysterious Sisters, Ruin Maniac, Scuba Diver, Snow Ace Trainer, and Young Couple trainer types to the game. With the addition of the Scuba Diver trainer type, random trainers are now permitted in the Seabed biome again at a 1/16th chance.

Note that biome placement, species pools, and species filters for new trainer types are not yet finalized.

Why am I making these changes?

More unique trainer types were desired to fill out specific biomes that lacked trainer types, preferably in the Common tier.

What are the changes from a developer perspective?

New trainer type data has been added, which includes enum entries, dialogue entries, biome placement, and (currently temporary) trainer config data

Screenshots/Videos

New Trainer Types

Aroma Lady

Bird Keeper

Bug Catcher

Camper/Picnicker

Collector

Dragon Tamer

Fairy Tale Girl

Interviewers

Mysterious Sisters

Ruin Maniac

Scuba Diver/Free Diver

Snow Ace Trainer

Young Couple

How to test the changes?

Set BATTLE_TYPE_OVERRIDE to BattleType.TRAINER and set RANDOM_TRAINER_OVERRIDE to whatever trainer you want to test, such as {trainerType: TrainerType.AROMA_LADY}.

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? (pnpm test:silent)
  - [ ] Have I created new automated tests (pnpm test:create) 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 new trainer classes, trainer names, & TODO trainer dialogue pokerogue-locales#258
• Has the translation team been contacted for proofreading/translation?

Does this require any changes to the assets folder? If so:

• Has a PR been created on the assets repo?
  • If so, please leave a link to it here: [Sprite] Add several new trainer type sprites pokerogue-assets#22