when skipping model weighs save and saving master weights as model weights, unified checkpoint needs choose the model weights to load into master weights.

* fix(unified checkpoint): fix last ckpt save

* fix(unified checkpoint): unified config format

* fix lora (#7824)

* [llm]support qlora pp (#7801)

* supprt qlora pp

* fix scale dtype

…7768)

* add parse_json_file_and_cmd_lines

* change unit test file path

* Change the way the JSON file is determined

* Merge parameter parsing judgment branches and add comments.

* remove the special handling of output_dir

* Add remaining_args warning

… bug (#7911)

* update converted logic & fix hf hub download subfolder bug

Cherry-pick of #7903

* RuntimeTimer for the toolekit

* RuntimeTimer for the toolekit

* reformat

* fix timer and load checkpoints

* remove reset

* Release 2.7.2

* Update __init__.py