Add new Microsoft.Windows/WindowsFeatureList resource

[Gijsreyn]

PR Summary

Add new Microsoft.Windows/WindowsFeatureList resource, including whatIf support.

Note

In an earlier pull request, the rename was removed from the struct. To keep it consistent, I also removed it from the registry library.

PR Context

Fixes #1540.

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds a new Rust-based DSC v3 resource for managing Windows Features via the DISM API, including schema/manifest wiring and Pester tests.

Changes:

• Introduces Microsoft.Windows/WindowsFeatureList resource manifest + build/workspace registration.
• Implements DISM-based get/set/export operations (including what-if and wildcard filtering for export).
• Adds Pester tests covering get/set/export and what-if behaviors.

Reviewed changes

Copilot reviewed 18 out of 19 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
resources/windows_feature/windows_feature.dsc.resource.json	Defines the DSC v3 resource manifest and embedded JSON schema for WindowsFeatureList.
resources/windows_feature/src/main.rs	Implements CLI entrypoint and argument parsing for get/set/export operations.
resources/windows_feature/src/dism.rs	Adds dynamic DISM API loading and feature operations (get, enable, disable, enumerate).
resources/windows_feature/src/get.rs	Implements resource get operation over DISM feature info.
resources/windows_feature/src/set.rs	Implements resource set operation, what-if metadata, and restart-required metadata emission.
resources/windows_feature/src/export.rs	Implements export with optional filters and wildcard matching optimization.
resources/windows_feature/src/types.rs	Defines serializable types for input/output and filter matching logic.
resources/windows_feature/src/util.rs	Adds DISM state mapping and wildcard/exact filter helpers.
resources/windows_feature/locales/en-us.toml	Adds localized strings for errors and what-if messages.
resources/windows_feature/Cargo.toml	Declares the new Rust crate/binary for the resource.
resources/windows_feature/.project.data.json	Registers the resource for packaging/copying the manifest.
resources/windows_feature/tests/windows_feature_get.tests.ps1	Adds Pester tests for get behavior and validation.
resources/windows_feature/tests/windows_feature_set.tests.ps1	Adds Pester tests for set behavior, idempotency, and validation.
resources/windows_feature/tests/windows_feature_export.tests.ps1	Adds Pester tests for export behavior and filtering (including wildcard).
resources/windows_feature/tests/windows_featurelist_whatif.tests.ps1	Adds Pester tests for what-if behavior asserting no mutation + metadata.
lib/dsc-lib-registry/src/config.rs	Aligns Metadata serialization to camelCase without explicit rename on what_if.
data.build.json	Registers the new resource artifacts for build/package output.
Cargo.toml	Adds the new crate to workspace members/default-members and Windows group.