Initial Release for Broadcast Solution📣

⭐Key features⭐

✅ Provides a model-driven app to manage global notifications
✅ Provides two security roles :

App Global Notification - Manager
- Allow users to create/edit/delete global notifications
- Allow acces to the model-driven app
App Global Notification - Reader
- This role gives only the read privilege to global notifications, required to display notifications
- Does not give access to the model-driven app