* test: increase test case of Progress and Comment
* test: add test case for Avatar
* test: add test case for Dropdown
* fix snapshot
* fix snapshot
* remove console.log
* fix lint
* add avatar
* fix: gapDegree=0 in Dashboard progress is now working
* update jest snapshot for Progress
* Add use case of gapDegree and test cases. Also doc error correction
* Upgrade `rc-progress` to `2.1.0`. Support dashboard.
Progress dashboard type (half circle)[#5225]
* restore removed code, it is for compatibility
* format code