feat(input-number): add keyboard props

[zengjingke]

Types of changes

• New feature
• Bug fix
• Enhancement
• Component style change
• Typescript definition change
• Documentation change
• Coding style change
• Refactoring
• Test cases
• Continuous integration
• Breaking change
• Others

Background and context

举个例子，当我在商品表格编辑中，我需要输入数量，这时用到input-number组件，我想通过上下按键快速切换到上一行或者下一行的input-number用于快速输入完 整列的数量，但是目前的input-number存在默认上下键盘加减值的事件，导致了我无法实现自行上下按键事件

Solution

增加keyboard属性，当我keyboard设置为false时，上下按键的事件自行定义，不进行上下按键加减逻辑
当我keyboard设置为ture时,依旧保持上下加减逻辑

How is the change tested?

Changelog

Component	Changelog(CN)	Changelog(EN)	Related issues
input-number	增加keyboad属性	add keyboard props

Checklist:

• Test suite passes (npm run test)
• Provide changelog for relevant changes (e.g. bug fixes and new features) if applicable.
• Changes are submitted to the appropriate branch (e.g. features should be submitted to feature branch and others
  should be submitted to main branch)

Other information