* Add CausalLMBenchEvalCallback for measuring seq2seq performance
* Fix code for pre-commit
* Fix typing and improve logging
* eval_sample_packing must be false with CausalLMBenchEvalCallback
* loftq support for lora
* fix loftq check
* update readme for loftq
* readability cleanup
* use peft main for loftq fixes, remove unnecessary special tokens
* remove unused test from older deprecation