[Item] Add Weather and Terrain Extender Item

[xsn34kzx]

Warning

This PR is a WIP. Screenshots, name, functionality, etc. are not final.

What are the changes the user will see?

"Domain Expander"

• Ultra Tier
• Stacks twice
• Spawns when a mon has a corresponding move or abilities
• +2 extra turns per stack for field effects (weather and terrain)

Why am I making these changes?

What are the changes from a developer perspective?

Screenshots/Videos

One Stack, Weather

Two Stacks, Terrain

How to test the changes?

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 considered writing automated tests for the issue?
• If I have text, did I make it translatable and add a key in the English locale file(s)?
  • [Item][EN] Domain Expander pokerogue-locales#51
• Have I tested the changes (manually)?
  • Are all unit tests still passing? (npm run test)
• Are the changes visual?
  • Have I provided screenshots/videos of the changes?