[CDF-26356] ⬇ Support download timeseries/events/files (#2236)

# Description

Please describe the change you have made.

## Bump

- [x] Patch
- [ ] Skip

## Changelog

### Added

- [alpha] Support for downloading timeseries/events/files, `cdf data
download timeseries/events/files`.

### Removed

- [alpha] Downloading assets no longer supports selecting an hierarchy.
Use the `cdf ddata download hierarchy` instead.
