feat(module: calendar): calendar add ngModel

[3fuyu]

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 #164 into master will decrease coverage by 0.11%.
The diff coverage is 68.62%.

@@            Coverage Diff             @@
##           master     #164      +/-   ##
==========================================
- Coverage   86.59%   86.47%   -0.12%     
==========================================
  Files         221      221              
  Lines        7021     7071      +50     
  Branches      980      989       +9     
==========================================
+ Hits         6080     6115      +35     
- Misses        550      561      +11     
- Partials      391      395       +4

Impacted Files	Coverage Δ
components/calendar/calendar.component.ts	70.47% <68.62%> (-0.15%)	⬇️

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[fisherspy]

pls check the travis&codecoverage