Offline Playing Capability

## Feature request for Cloudinary Flutter SDK
#### Offline Playing Capability
## Explain your use case
The current Cloudinary SDK streams videos directly, requiring continuous internet access. Without it, video playback halts, causing poor user experience. This feature would enable smoother viewing for pre-recorded videos, especially in low-connectivity environments.

## Describe the problem you’re trying to solve
In our Flutter app, users often lose internet connectivity but still expect to access video content. We need a way to cache Cloudinary-hosted videos so users can view them offline after downloading.
## Do you have a proposed solution?
Yes. Introduce an option to download and cache videos for offline playback, excluding live streams. Developers should be able to manage cached content, including clearing or updating stored videos. Implementing this will require collaboration with the Cloudinary team to ensure proper integration within the SDK.