feat(module:image): add image component

[stygian-desolator]

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?

add image component

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 #6154 (8fb64a0) into master (860dfed) will decrease coverage by 0.00%.
The diff coverage is 91.79%.

@@            Coverage Diff             @@
##           master    #6154      +/-   ##
==========================================
- Coverage   89.82%   89.81%   -0.01%     
==========================================
  Files         469      477       +8     
  Lines       14948    15204     +256     
  Branches     2273     2302      +29     
==========================================
+ Hits        13427    13656     +229     
- Misses        935      951      +16     
- Partials      586      597      +11     

Impacted Files	Coverage Δ
components/core/config/config.ts	100.00% <ø> (ø)
components/icon/icons.ts	100.00% <ø> (ø)
components/image/image-preview.component.ts	87.85% <87.85%> (ø)
components/image/image.directive.ts	94.44% <94.44%> (ø)
components/image/image.service.ts	95.45% <95.45%> (ø)
components/image/image-config.ts	100.00% <100.00%> (ø)
components/image/image-group.component.ts	100.00% <100.00%> (ø)
components/image/image-preview-options.ts	100.00% <100.00%> (ø)
components/image/image-preview-ref.ts	100.00% <100.00%> (ø)
components/image/image.module.ts	100.00% <100.00%> (ø)
... and 10 more

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[stygian-desolator]

@hsuanxyz cc, thanks~

[hsuanxyz]

Good work!

[stygian-desolator]

@hsuanxyz Please review again, thanks~

[hsuanxyz]

@stygian-desolator The fit-content action is only applied when the visible area is not completely covered.