feat: Add suffix property

[dengfuping]

🤔 This is a ...

• New feature
• Bug fix
• Site / document update
• Component style update
• TypeScript definition update
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

👻 What's the background?

• Close [Feature Request] Add suffix property #7.

💡 Solution

📝 Changelog

Language	Changelog
🇺🇸 English	🌟 Add suffix to set additional string after option.value.
🇨🇳 Chinese	🌟 新增 suffix 属性用于设置后缀字符串。

☑️ Self Check before Merge

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (51c3ec0) to head (9f0a8db).
Report is 146 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master        #8   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            7         7           
  Lines          254       254           
  Branches        48        49    +1     
=========================================
  Hits           254       254           

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