feat(module:tag): support fully control by user

[CoderPoet]

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: N/A

What is the new behavior?

Checkable tags now support full user control

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #3100 into master will decrease coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3100      +/-   ##
==========================================
- Coverage   97.37%   97.32%   -0.06%     
==========================================
  Files         559      550       -9     
  Lines       11627    11515     -112     
  Branches      835      821      -14     
==========================================
- Hits        11322    11207     -115     
- Misses        193      199       +6     
+ Partials      112      109       -3

Impacted Files	Coverage Δ
components/tag/nz-tag.component.ts	100% <100%> (ø)	⬆️
components/cascader/nz-cascader-li.component.ts	88.88% <0%> (-5.56%)	⬇️
components/tree/nz-tree-node.ts	88.79% <0%> (-3.12%)	⬇️
components/core/polyfill/request-animation.ts	21.73% <0%> (-2.08%)	⬇️
components/breadcrumb/nz-breadcrumb.component.ts	57.14% <0%> (-1.84%)	⬇️
components/core/util/logger/logger.service.ts	70.58% <0%> (-1.64%)	⬇️
components/menu/nz-submenu.service.ts	91.42% <0%> (-0.47%)	⬇️
components/cascader/nz-cascader.component.ts	99.23% <0%> (-0.4%)	⬇️
...mponents/message/nz-message-container.component.ts	96.55% <0%> (-0.33%)	⬇️
components/tree/nz-tree-base.service.ts	96.87% <0%> (-0.31%)	⬇️
... and 295 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 51c0d53...2943185. Read the comment docs.

[netlify]

Deploy preview for ng-zorro-master ready!

Built with commit 2943185

https://deploy-preview-3100--ng-zorro-master.netlify.com

[vthinkxie]

thanks for your pr!
tslint error, plz fix it and rebase onto master

[wzhudev]

@CoderPoet ping~ Are you stilling working on this? I could take it over if you will.

[wzhudev]

Closed due to inactivity. Please reopen another PR if you still would like to contribute. Thank you.

BTW, I didn't see this feature is implemented in antd. Could you please describe the use case?