support loading dataset for llama:
1.load dataset by MsDataset when parameters train dataset name and val dataset name were set. but there is no suitable dataset in hub.
2.load dataset by MsDataset when only parameter train dataset name was set, and then split into train dataset and validation dataset .
3.load dataset by MsDataset when user set parameter src_txt, which is a file path such as 'alpaca_data.json', and then split into training dataset and validation dataset.
4.load dataset by build dataset from file in flex training.
Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/13505335
Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/13080086
* support lora for llama
* update baichuan
* remove work_dir
* fixbug: 1. change ConfigDict to list when hooks key not in config 2. ignore all bin files when preparing output folder
* 1. support device_map 2. remove the operation of to float when using lora
* add inference file
* add comment
* support device_map
