feat: initial wpgraphql-debug-extensions plugin boilerplate

[theodesp]

Description

This PR adds the basic plugin skeleton for wpgraphql-debug-extensions. This includes:

• Namespace: The primary namespace is WPGraphQL\Debug.

• Text Domain: The plugin's text domain has been set to wpgraphql-debug-extensions.

• README: The README.md file has been added to describe the plugin's purpose as a base for debug extensions, clarifying that it's currently a skeleton with no functionality beyond the core setup.

• Complexity Metric: Calculates a "complexity score" for each GraphQL query based on the number of fields, fragments, and inline fragments selected. Provides contextual notes in the debugExtensions output, categorizing queries as "Low," "Moderate," "High," or "Very High" complexity.

Related Issue

#337

Dependant PRs

Type of Change

• ✅ Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactoring (no functional changes)
• 📄 Example update (no functional changes)
• 📝 Documentation update
• 🔍 Performance improvement
• 🧪 Test update

How Has This Been Tested?

Screenshots

N/A - This PR does not introduce any UI/UX changes.

Checklist

• I have read the CONTRIBUTING document
• My code follows the project's coding standards
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• Any dependent changes have been highlighted, merged or published

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Latest commit: 768ec32

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[github-actions]

ℹ️ Download the latest wpgraphql-debug-extensions plugin zip from this PR
(See the 'Artifacts' section at the bottom)

[github-actions]

ℹ️ Download the latest wp-graphql-webhooks plugin zip from this PR
(See the 'Artifacts' section at the bottom)

[colinmurphy]

@theodesp

This looks good to me. Some minor suggestions in the PR ❤️ 🚀

[colinmurphy]

LGTM 🚀 🚀 🚀