Add ls command

[thelovekesh]

Add wpm ls command to list all the deps with versions.

Example:

cool-project
├── auto-cloudinary@1.3.1
├── better-search-replace@1.4.10
├── duplicate-post@4.5.0
├── pantheon-advanced-page-cache@2.1.2
├── redirection@5.6.1
├── solr-power@2.6.0
├── wordpress-seo@26.7.0
└── wp-redis@1.4.7

[gemini-code-assist]

Summary of Changes

Hello @thelovekesh, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the wpm CLI by introducing a new ls command. This command provides a comprehensive, tree-structured overview of a project's dependencies, drawing data from wpm.json and wpm.lock files. The addition improves the user's ability to inspect and manage their project's dependency graph, offering insights into versions, potential issues like unmet dependencies or cycles, and allowing for customizable display depth.

Highlights

• New ls command added: Introduced a new wpm ls command that allows users to list all installed dependencies along with their versions in a tree-like format.
• Dependency Tree Visualization: The command provides a clear, hierarchical view of dependencies, similar to npm ls, reading information from wpm.json and wpm.lock files.
• Depth Control: A --depth flag (shorthand -d) has been added to control the maximum display depth of the dependency tree, enabling users to focus on specific levels of the dependency graph.
• Dependency Status Indicators: The output includes indicators for invalid versions, unmet dependencies, and detects and marks dependency cycles for better understanding of the project's dependency health.

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[github-actions]

📦 wpm cli builds 📦

• darwin/amd64 - build
• darwin/arm64 - build
• linux/amd64 - build
• linux/arm/v6 - build
• linux/arm/v7 - build
• linux/arm64 - build
• linux/ppc64le - build
• linux/riscv64 - build
• linux/s390x - build
• windows/amd64 - build
• windows/arm64 - build

[gemini-code-assist]

Code Review

This pull request introduces a new ls command to list project dependencies in a tree format. The implementation is well-structured, handling wpm.json and wpm.lock files, dependency depth, and cycle detection correctly.

I've added a few suggestions to improve code clarity and maintainability, mainly around refactoring parts of the output formatting logic and using standard Go interfaces. Overall, this is a great addition.