Adding format array support

[SamKirkland]

Adds array formatting support to match picker format
Will be used to resolve this issue in antd ant-design/ant-design#13163

[codecov]

Codecov Report

❌ Patch coverage is 84.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.66%. Comparing base (174c47e) to head (66fc26f).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/TimePicker.jsx	60.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #198      +/-   ##
==========================================
- Coverage   91.86%   91.66%   -0.20%     
==========================================
  Files           6        6              
  Lines         381      396      +15     
  Branches       99      102       +3     
==========================================
+ Hits          350      363      +13     
- Misses         31       33       +2     

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