* Support V1.0 anchor generator

* Reformat code

* Add registry for anchor generator

* Reformat docstring

* fix isort

* Refactor anchor generator

* reformat doc, add unittest

* Refactor retinahead anchor generator

* Fix test_anchor device bug

* Fix docstring

* Resolve comments with more unittests

* Fix atss bug and add more unittest

* Resolve comments

* Add more asset and check