Deprecate models script (#30184)
* Add utility for finding candidate models for deprecation
* Update model init
* Make into configurable script
* Fix path
* Add sorting of base object alphabetically
* Tidy
* Refactor __init__ alpha ordering
* Update script with logging
* fix import
* Fix logger
* Fix logger
* Get config file before moving files
* Take models from CLI
* Split models into lines to make easier to feed to deprecate_models script
* Update
* Use posix path
* Print instead
* Add example in module docstring
* Fix up
* Add clarifying comments; add models to DEPRECATE_MODELS
* Address PR comments
* Don't update relative paths on the same level
