fix(tree): support nzHideUnMatched

[simplejason]

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:
#2208 #2205

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #2217 into master will increase coverage by 0.01%.
The diff coverage is 95.38%.

@@            Coverage Diff             @@
##           master    #2217      +/-   ##
==========================================
+ Coverage   95.96%   95.97%   +0.01%     
==========================================
  Files         482      482              
  Lines       11965    12010      +45     
  Branches     1594     1602       +8     
==========================================
+ Hits        11482    11527      +45     
+ Misses        134      133       -1     
- Partials      349      350       +1

Impacted Files	Coverage Δ
components/tree-select/nz-tree-select.module.ts	100% <100%> (ø)	⬆️
components/tree/nz-tree.component.ts	98.51% <100%> (+0.04%)	⬆️
components/tree/nz-tree-node.component.ts	95.78% <66.66%> (-0.51%)	⬇️
components/tree-select/nz-tree-select.component.ts	98.37% <96%> (+0.6%)	⬆️
components/tree/nz-tree.service.ts	94.07% <96.29%> (+0.39%)	⬆️

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