feat(module:popconfirm): support popconfirm template context

[yuhengzhouz]

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

What is the current behavior?

Issue Number: #7606

What is the new behavior?

nzPopconfirmTitleContext can be passed in and used by nzPopconfirmTitle

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

All modified and coverable lines are covered by tests ✅

Project coverage is 91.50%. Comparing base (512a577) to head (e2cfb0b).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7989      +/-   ##
==========================================
+ Coverage   91.49%   91.50%   +0.01%     
==========================================
  Files         534      534              
  Lines       18425    18427       +2     
  Branches     2815     2815              
==========================================
+ Hits        16858    16862       +4     
+ Misses       1246     1245       -1     
+ Partials      321      320       -1     

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[yuhengzhouz]

hi there, pipeline would fail once i update relative doc, so i just reverted it @wzhudev

[Laffery]

hey @yuhengzhouz, sorry for review this pr too late, it'll be great if you'd like to resolve the conflicts

[yuhengzhouz]

hi there, all done @Laffery

[Laffery]

LGTM, we will merge this pr in v18.1