co-contributed with 夕陌&雨泓
* add torch epoch based trainer and dis utils
* add hooks including optimizer, lrscheduler, logging, checkpoint, evaluation, time profiling
* add torch mdoel base and test
* add optimizer and lrscheduler module
* add sbert for text classification example
* add task_dataset for dataset-level processor
Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/9338412
* add trainer interface
* add trainer script
* add model init support for pipelineadd pipeline tutorial and fix bugs
* add text classification evaluation to maas lib
* add quickstart and prepare env doc
* relax requirements for torch and sentencepiece
* merge release/0.1 and fix conflict
* modelhub support for model and pipeline
Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/8868339