Feat date picker

[myronliu347]

No description provided.

[codecov]

Codecov Report

Merging #1284 into feat/1.19.0 will decrease coverage by 0.15%.
The diff coverage is 91.24%.

@@              Coverage Diff               @@
##           feat/1.19.0   #1284      +/-   ##
==============================================
- Coverage        90.66%   90.5%   -0.16%     
==============================================
  Files              264     266       +2     
  Lines            14744   14914     +170     
  Branches          4761    4833      +72     
==============================================
+ Hits             13367   13498     +131     
- Misses            1350    1390      +40     
+ Partials            27      26       -1

Impacted Files	Coverage Δ
src/calendar/index.jsx	100% <100%> (ø)
src/date-picker/index.jsx	100% <100%> (ø)	⬆️
src/date-picker/util/index.js	95.55% <66.66%> (-1.04%)	⬇️
src/date-picker/range-picker.jsx	91.71% <77.41%> (-1.5%)	⬇️
src/date-picker/week-picker.jsx	96.03% <96.03%> (ø)
src/select/base.jsx	84% <0%> (-6.28%)	⬇️
src/upload/upload.jsx	79.24% <0%> (-3%)	⬇️
src/upload/list.jsx	73.44% <0%> (-2.61%)	⬇️
src/number-picker/number-picker.jsx	94.41% <0%> (-1.42%)	⬇️
src/input/input.jsx	93.75% <0%> (-0.94%)	⬇️
... and 7 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8ce426c...7c3fe27. Read the comment docs.

[youluna]

1. 没有使用type更换RangePicker面板的demo，至少得加个demo
   2.中文模式下感觉用 2019-44周 更合适，而不是全都用英文
   3.文档里写一下WeekPicker是1.19.0+ 才有的

[myronliu347]

1. 没有使用type更换RangePicker面板的demo，至少得加个demo
   2.中文模式下感觉用 2019-44周 更合适，而不是全都用英文
   3.文档里写一下WeekPicker是1.19.0+ 才有的

1. Demo 已加
2. 这个根据moment语言包决定
3. version 加上了