feat(module: list): renderHeader&renderFooter support String and Temp…

[3fuyu]

…lateRef

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd-mobile/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #313 into master will increase coverage by 0.05%.
The diff coverage is 75%.

@@            Coverage Diff             @@
##           master     #313      +/-   ##
==========================================
+ Coverage   89.59%   89.65%   +0.05%     
==========================================
  Files         229      229              
  Lines        6864     6871       +7     
  Branches      560      560              
==========================================
+ Hits         6150     6160      +10     
+ Misses        550      548       -2     
+ Partials      164      163       -1

Impacted Files	Coverage Δ
components/list/list.component.ts	91.66% <75%> (-8.34%)	⬇️
components/date-picker/date-picker.component.ts	79.86% <0%> (+0.23%)	⬆️
components/picker/picker.component.ts	82.35% <0%> (+1.76%)	⬆️
components/picker/picker.service.ts	94.44% <0%> (+5.55%)	⬆️

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[3fuyu]

#304