Description of Change

Description of Change

This PR adds a new native addon fixture for testing virtual display functionality in Electron. The virtual-display addon provides programmatic virtual display creation capabilities on macOS for comprehensive display testing scenarios.

Example usage:

const virtualDisplay = require('@electron-ci/virtual-display');
const displayId = virtualDisplay.create();
virtualDisplay.destroy(displayId);

Checklist

• PR description included and stakeholders cc'd
• tests are changed or added
• relevant API documentation, tutorials, and examples are updated and follow the documentation style guide
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: none