Add Template Command

[AaravMalani]

This PR adds the yarn template command which interactively allows plugin creation. This replaces the prior (and more complicated) method of manually copying the example template over and changing the required files.

Wiki Changes

• Document the change in the Plugin Creation page

[changeset-bot]

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Latest commit: afb94cd

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[gemini-code-assist]

Code Review

This pull request introduces a template generation tool to scaffold new plugins (runner, common, and web) using @inquirer/prompts. It adds the template files, utility functions, and a new yarn template script. The review feedback highlights several critical improvements: preventing silent overwrites of existing plugin directories, ensuring Windows compatibility by normalizing path separators for fs.glob, resolving a configuration mismatch for external plugins between package.json and rollup.config.mjs, and refining the default class name generation to avoid duplicate suffixes.

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