[CDF-25594] 🙉 Support dump dataset (#1890)

# Description

Adds support for dumping datasets. This is typically used by users that
creates a dataset using the fusion UI in a dev CDF project, and then,
dumping it, enables the user to add it to governance in a prod CDF
project.

<img width="838" height="142" alt="image"
src="https://github.com/user-attachments/assets/42fbb152-d228-4ae3-9f3d-a78deda5aba6"
/>


## Changelog

- [x] Patch
- [ ] Skip

## cdf

### Added

- [alpha] Support dumping datasets, `cdf dump datasests`. 

## templates

No changes.
