v4.0.0

🔖 Update version to v4.0.0
📝 Create Tibidabo.md example
⚡️ Remove unused schoolCode property
🏷️ Remove schoolCode from ClassOptions
💡 Comment Tibidabo#addMessageAttachment
✨ Create Tibidabo#reportMessage
✨ Create Tibidabo#removeMeFromThread
✅ Create Tibidabo.test.js
✨ Export Tibidabo class
💥 Create Tibidabo.ts class
🏷️ Create Tibidabo.ts typings

Full Changelog: v3.2.0...v4.0.0