Add automated Cross-Framework testing for Web Component

[tinyjin]

thorvg.web provides a web component that can be used across different frontend frameworks (React, Vue, Svelte, etc.) via NPM/CDN. While the library doesn't officially support specific frameworks, it's designed to work universally as a web component.

However, framework compatibility testing is done manually for important changes. Need an automated testing pipeline that validates thorvg.web functionality across major frontend frameworks.

• React
• Vue
• Svelte

Solution

1. Extended Examples Structure

examples/
├── default/                    # Vanilla JS with CDN
│   ├── index.html
│   └── benchmark.html
├── react/                          # React 18+ with Vite
│   ├── package.json
│   ├── vite.config.ts
│   ├── index.html
├── vue/                            # Vue 3+ with Vite
│   ├── package.json
│   ├── vite.config.ts
│   ├── index.html
├── svelte/                         # Svelte 4+ with Vite
│   ├── package.json
│   ├── vite.config.ts
│   ├── index.html

2. Framework-Specific Package Configurations
3. Build Validation Scripts
4. CI/CD Integration (like cross-framework-test.yml)

[tinyjin]

@lerrybe