286 type defs

[shramee]

Usage related changes

None

Development related changes

• Close Move starknet and devnet type definitions to dedicated files #286 Moved Starknet and Devnet interface definitions to dedicated files.
  This makes it easier to refer the users to the interface for up to date lookup of available properties.

Checklist:

• Formatted the code
• No linter errors + tried to avoid introducing linter warnings
• Performed a self-review of the code
• Rebased to the last commit of the target branch (or merged it into my branch)
• Documented the changes
  • If src/type-extensions.ts was changed, updated the line number referencing this file in the ## API section of README.md ⚠️ Won't need this ever again 🥳
• Updated the test directory (with a test case consisting of network.json, hardhat.config.ts, check.ts)
• Linked issues which this PR resolves
• Created a PR to the plugin branch of starknet-hardhat-example:
  • < EXAMPLE_REPO_PR_URL >
  • Modified test.sh to use my example repo branch
  • Restored test.sh to to use the original branch (after the example repo PR has been merged)
• All tests are passing (for external contributors who don't have access to the CI/CD pipeline)

[FabijanC]

Thanks! I did not completely check if all the lines in the old files match the ones in the new files, but generally looks great!