feat(abc:cell): add cell component

[cipchk]

• close st: 提取st中与视图无关，仅与获取数据有关的行为，封装成一个新的数据源组件 ng-alain#2267
• close st: 导出 st-td组件或者STTdComponent的class ng-alain#2266

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ng-alain/delon/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?

Does this PR introduce a breaking change?

[x] Yes
[ ] No

Other information

[ng-alain-bot]

Preview is ready!

[codecov]

Codecov Report

Merging #1530 (dcf89f9) into master (d815dbd) will increase coverage by 0.05%.
The diff coverage is 98.33%.

❗ Current head dcf89f9 differs from pull request most recent head 6dfba8a. Consider uploading reports for the commit 6dfba8a to get more accurate results

@@            Coverage Diff             @@
##           master    #1530      +/-   ##
==========================================
+ Coverage   95.51%   95.56%   +0.05%     
==========================================
  Files         277      281       +4     
  Lines        8561     8726     +165     
  Branches     1682     1726      +44     
==========================================
+ Hits         8177     8339     +162     
  Misses        319      319              
- Partials       65       68       +3     

Files Changed	Coverage Δ
packages/abc/st/st.module.ts	100.00% <ø> (ø)
packages/util/config/config.types.ts	100.00% <ø> (ø)
packages/util/format/currency.types.ts	100.00% <ø> (ø)
packages/abc/cell/cell.service.ts	97.43% <97.43%> (ø)
packages/abc/cell/cell.component.ts	98.36% <98.36%> (ø)
packages/abc/cell/cell-host.directive.ts	100.00% <100.00%> (ø)
packages/abc/cell/cell.module.ts	100.00% <100.00%> (ø)
packages/abc/st/st-column-source.ts	99.65% <100.00%> (+<0.01%)	⬆️
packages/abc/st/st-data-source.ts	100.00% <100.00%> (ø)
packages/theme/src/pipes/date/date.pipe.ts	100.00% <100.00%> (ø)
... and 2 more