feat(module:typography): support custom icons and tooltips

[hsuanxyz]

close #5888

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: #5888

What is the new behavior?

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 #5911 into master will increase coverage by 0.00%.
The diff coverage is 91.17%.

@@           Coverage Diff           @@
##           master    #5911   +/-   ##
=======================================
  Coverage   90.00%   90.01%           
=======================================
  Files         463      463           
  Lines       13986    14019   +33     
  Branches     2297     2305    +8     
=======================================
+ Hits        12588    12619   +31     
  Misses        854      854           
- Partials      544      546    +2     

Impacted Files	Coverage Δ
components/core/config/config.ts	100.00% <ø> (ø)
components/typography/typography.module.ts	100.00% <ø> (ø)
components/typography/text-copy.component.ts	94.73% <89.65%> (-5.27%)	⬇️
components/typography/text-edit.component.ts	97.50% <100.00%> (+0.06%)	⬆️
components/typography/typography.component.ts	97.79% <100.00%> (+0.06%)	⬆️
components/tooltip/base.ts	92.46% <0.00%> (+0.50%)	⬆️

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