wgsl-tooling-wg/wesl-rs

AI Summary: Create a '.vscode' folder in the project root containing files to configure the VS Code IDE for developers. This includes recommendations for extensions, debugging settings, tasks, and project-specific editor settings to improve the onboarding experience for new contributors.

AI Summary: Implement correct behavior for WESL directives, including de-duplication of identical directives, ensuring root module includes directives from sub-modules, and eventually validating directive usage within dependent modules. This involves modifying the `wesl` crate's import handling to go beyond simple copy-pasting and enforce the specified behavior as documented in the WESL specification.