refactor(module:transfer,tree,tree-select): rename CheckBox to Checkbox

[Laffery]

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
• 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?

• Yes
• No

• rename output property nzCheckBoxChange of NzTreeNode and NzTreeComponent to nzCheckboxChange
• rename output property nzTreeCheckBoxChange of NzTreeSelectComponent to nzTreeCheckboxChange

All of these changes will be migrated by ng update

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.92%. Comparing base (82b660a) to head (ca677c7).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8934   +/-   ##
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  Coverage   91.92%   91.92%           
=======================================
  Files         554      554           
  Lines       19683    19683           
  Branches     2937     2937           
=======================================
  Hits        18093    18093           
  Misses       1265     1265           
  Partials      325      325           

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[HyperLife1119]

LGTM