[CDF-25015] 🏭 Migrate assets (#1649)

# Description

<del>Stacked on #1644, #1645, #1643</del>

This introduces a command for migration of assets. This creates the
CogniteAssets, but it also populates the mapping view which can then be
used in later migrations of Charts, Canvas, 3D, annotaions, Infield, etc


![image](https://github.com/user-attachments/assets/52f54793-364f-4d59-a9df-b58550bbbb27)


## Changelog

- [x] Patch
- [ ] Minor
- [ ] Skip

## cdf

### Added

- [alpha] New command `cdf migrate assets` for moving asset-centric
assets to CogniteAssets.
 
## templates

No changes.
