GitLab

**Description**
 Make baseline check optional in data diagnosis and fix bugs.

**Major Revision**
- make baseline file optional in data diagnosis
- fix bugs of output in md and excel format when 'function' is not in the rule
- fix bug in multi_rules function that miss/failed test may failed the whole process

**Minor Revision**
- revise doc related with data diagnosis
- resolve warning message about baseline not found check, only raise exception if baseline not found in the  'variance' function
- move summary fields into top of json file
- unify 'Index','machine' -> 'index' in output file

**Description**
Add support to store values of metrics in data diagnosis.

Take the following rules as example: 
```
    nccl_store_rule:
      categories: NCCL_DIS
      store: True
      metrics:
        - nccl-bw:allreduce-run0/allreduce_1073741824_busbw
        - nccl-bw:allreduce-run1/allreduce_1073741824_busbw
        - nccl-bw:allreduce-run2/allreduce_1073741824_busbw
        - nccl-bw:allreduce-run3/allreduce_1073741824_busbw
        - nccl-bw:allreduce-run4/allreduce_1073741824_busbw
    nccl_rule:
      function: multi_rules
      criteria: 'lambda label:True if min(label["nccl_store_rule"].values())/max(label["nccl_store_rule"].values())<0.95 else False'
      categories: NCCL_DIS
```
**nccl_store_rule** will store the values of the metrics in dict and save them into `label["nccl_store_rule"]` , and then **rccl_rule** can use the values of metrics through `label["nccl_store_rule"].values()` in criteria

**Description**
Add failure check feature in data diagnosis.

**Major Revision**
- Add failure check rule op to support that if there exists metric_regex not been matched by any metric in result, label as failedtest
- Split performance issue and failedtest in categories


**Minor Revision**
- replace DataFrame.append() with pd.concat since append() will be removed in later version of pandas

**Description**
Add multi-rules feature for data diagnosis to support multiple rules' combined check.

**Major Revision**
- revise rule design to support multiple rules combination check
- update related codes and tests

**Description**
Add data diagnosis module.

**Major Revision**
- Add DataDiagnosis class to support rule-based data diagnosis for result summary jsonl file of multi nodes
- Add RuleOp class to define rule operators