fix(order-in-components): allow autofix with TypeScript PropType

[acupofspirt]

In the following code vue/order-in-components rule can't be autofixed because of as PropType:

import { defineComponent, PropType } from 'vue'

export defineComponent({
  setup () {},

  props: {
    someProp: { 
      type: Array as PropType<string[]>
    }
  }
})

TSAsExpression node is considered as not side-effects free. This PR fixes it.

[ota-meshi]

Thank you for this PR. Could you please add test cases?

[acupofspirt]

ota-meshi tests done

[ota-meshi]

LGTM! Thank you!

[ota-meshi]

ts-eslint-v4 error is fixed in #1956.