GitLab

**Description**
Add md and html output format for DataDiagnosis.

**Major Revision**
- add md and html support in file_handler
- add interface in DataDiagnosis for md and HTML output

**Minor Revision**
- move excel and json output interface into DataDiagnosis

**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