feat(facade): facade-namespace & global addEvent

[weird94]

univerAPI.Enum.DataValidationType;
univerAPI.Event.CellChanged;
univerAPI.addEvent(univerAPI.Event.SheetCreated, () => {});

Pull Request Checklist

• Related tickets or issues have been linked in the PR description (or missing issue).
• Naming convention is followed (do please check it especially when you created new plugins, commands and resources).
• Unit tests have been added for the changes (if applicable).
• Breaking changes have been documented (or no breaking changes introduced in this PR).

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Playwright test results

 21 passed

Details

 21 tests across 10 suites
 4 minutes, 46 seconds
 68376f9
 For more information, see full report

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 110 lines in your changes missing coverage. Please review.

Project coverage is 33.30%. Comparing base (c5fcf3e) to head (68376f9).
Report is 4 commits behind head on dev.

Files with missing lines	Patch %	Lines
packages/sheets/src/facade/f-univer.ts	0.00%	35 Missing ⚠️
packages/core/src/facade/f-univer.ts	0.00%	26 Missing ⚠️
packages/core/src/facade/f-base.ts	0.00%	15 Missing ⚠️
packages/core/src/facade/f-enum.ts	0.00%	13 Missing ⚠️
packages/core/src/facade/f-event.ts	0.00%	8 Missing ⚠️
packages/sheets/src/facade/f-event.ts	0.00%	3 Missing ⚠️
packages/sheets/src/facade/f-range.ts	0.00%	3 Missing ⚠️
packages/sheets/src/facade/f-workbook.ts	0.00%	3 Missing ⚠️
packages/sheets/src/facade/f-worksheet.ts	0.00%	3 Missing ⚠️
packages/core/src/facade/f-util.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #4346      +/-   ##
==========================================
- Coverage   33.33%   33.30%   -0.03%     
==========================================
  Files        2528     2532       +4     
  Lines      130620   130712      +92     
  Branches    29149    29167      +18     
==========================================
  Hits        43540    43540              
- Misses      87080    87172      +92     

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