refactor(types): refactor the `InferPropType` type

[caozhong1996]

Fix: #4689 Please allow me to remind you pay attention to this pr. Due to historic reasons, Props's type inference has two styles.

vue2 style

const props = {
  msg1:  Number,
  msg2: {
    type: Number,
    required: true
  }
}

defineComponent<typeof props>({
  setup(props) {
    //....
  }
})

TS style

const MyComponent = defineComponent<{ a?: number; msg: number }>({
    setup(props) {
       //.....
    }
})

msg2 is required, msg1 not.

---

It's easily see what the differences:

• If we defined one prop is vue2 style, we must use a special field called required to ensure it's required.
• If we defined one prop is TS style, we can just use ? to control whether required.

It seems that they are easily distinguished, but it's not a easy thing in the code.

Like #4689, there is a minimum repetition:

Because it mixed vue2 style and TS style, but we did not consider this before.

A digression

I checked some history commite about here, it seems had been modified many times. I believe that had affected the maintain. eg

No offence, it may seem strange, why Date, DateConstructor had be special treatment, so I choose to refactor InferPropType.

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