1. Support `ReduceLROnPlateau` lr scheduler, and add `PlateauLrSchedulerHook` for it
2. Support custom `optimizer_hook` and `lr_scheduler_hook`
3. Remove function of save best ckpt from `EvaluationHook`, replace with `BestCkptSaverHook`
4. `evaluation_loop` return metric values directly,move metric computation to `single_gpu_test` and `multi_gpu_test`
Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/9584322
* [to #43627720] support ReduceLROnPlateau and fix lr scheduler
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