Add Gen 4 Trades to API

[notblisy]

Change description

• Add all DPPt and HGSS trades
• Add relevant encounter conditions and prose
• Add 4 new location areas for trades that didn't exist
• New min level for trades is 1 now, so instead of 5-100 on "lowest evo" pokemon, it's 1-100.

AI coding assistance disclosure

• No AI was used in this PR

Contributor check list

• I have written a description of the contribution and explained its motivation.
• I have written tests for my code changes (if applicable).
• I have read and understood the AI Assisted Contribution guidelines.
• I will own this change in production, and I am prepared to fix any bugs caused by my code change.

[jemarq04]

Just a couple of typos - otherwise looks great!

[notblisy]

Glad to hear it!

[jemarq04]

Perfect, thanks!

[pokeapi-machine-user]

A PokeAPI/api-data refresh has started. In ~45 minutes the staging branch of PokeAPI/api-data will be pushed with the new generated data.

The staging branch will be deployed in our staging environment and the entire API will be ready to review.

A Pull Request (master<-staging) will be also created at PokeAPI/api-data and assigned to the PokeAPI Core team to be reviewed. If approved and merged new data will soon be available worldwide at pokeapi.co.

[pokeapi-machine-user]

The updater script has finished its job and has now opened a Pull Request towards PokeAPI/api-data with the updated data.

The Pull Request can be seen deployed in our staging environment when CircleCI deploy will be finished (check the start time of the last build).