feat(module:calendar): support only display date of active month

[Eve-Sama]

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/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
[x] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: #4615

What is the new behavior?

If you enable nzMonthScope(default false), then calendar only display the date of active month, not display extra date anymore.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #5146 into master will decrease coverage by 0.03%.
The diff coverage is 90.90%.

@@            Coverage Diff             @@
##           master    #5146      +/-   ##
==========================================
- Coverage   91.45%   91.42%   -0.04%     
==========================================
  Files         547      547              
  Lines       13746    13804      +58     
  Branches     2129     2151      +22     
==========================================
+ Hits        12572    12620      +48     
- Misses        709      712       +3     
- Partials      465      472       +7     

Impacted Files	Coverage Δ
components/date-picker/lib/date-table.component.ts	96.61% <90.00%> (-0.62%)	⬇️
components/calendar/calendar.component.ts	100.00% <100.00%> (ø)
components/table/src/table/tbody.component.ts	85.71% <0.00%> (-14.29%)	⬇️
components/table/src/table/tr-measure.component.ts	86.95% <0.00%> (-13.05%)	⬇️
...s/notification/notification-container.component.ts	94.23% <0.00%> (-5.77%)	⬇️
components/time-picker/time-holder.ts	94.73% <0.00%> (-1.06%)	⬇️
components/message/base.ts	88.78% <0.00%> (-0.84%)	⬇️
components/select/select.component.ts	90.14% <0.00%> (-0.47%)	⬇️
components/input/input.module.ts	100.00% <0.00%> (ø)
components/select/select.module.ts	100.00% <0.00%> (ø)
... and 14 more

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[vthinkxie]

Thanks for your pull request!
some comments here:

1. The issue is needed before creating any pull request, this would help others understand your proposal.
2. test is needed

[Eve-Sama]

Thanks for your pull request!
some comments here:

1. The issue is needed before creating any pull request, this would help others understand your proposal.

2. test is needed

Actually, the issue is exist #4615

[Eve-Sama]

Thanks for your pull request!
some comments here:

1. The issue is needed before creating any pull request, this would help others understand your proposal.

2. test is needed

Issue number has been displaied in the PR describe. And I added a unit test for this feature just now.

[Eve-Sama]

Any problems?

[vthinkxie]

cc @wenqi73
can you take a look?

[wenqi73]

@Mr-Eve 只需要加个 [nzDisabledDate] 即可。“仅显示当前月的日期”这种定制化的需求不是组件库应该做的。正如 issue 里面所说，用 [nzDisabledDate] 配合 css 就能解决该需求。欢迎再来个 PR！

[Eve-Sama]

确实. 那过两天我看看. 我重新提PR吧, 这个PR的commit都没有价值了.