Support `readOnly`/`writeOnly` fields in Schema Object

[fmatzy]

Description

readOnly/writeOnly fields for Schema Object properties is not reflected in the output type information.
Specification of readOnly/writeOnly is here.

Example input:

openapi: 3.0.3
info:
  title: example
  version: 0.1.0
servers:
  - url: https://example.com/v1
paths:
  /path:
    put:
      summary: Put Example
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ExampleObject"
      responses:
        "200":
          description: Success
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ExampleObject"
components:
  schemas:
    ExampleObject:
      type: object
      required:
        - id
        - name
        - value
      properties:
        id:
          type: integer
          readOnly: true
        name:
          type: string
        value:
          type: integer
          writeOnly: true

I got

api/@types/index.ts:

/* eslint-disable */
export type ExampleObject = {
  id: number
  name: string
  value: number
}

api/path/index.ts:

/* eslint-disable */
import type * as Types from '../@types'

export type Methods = {
  put: {
    status: 200
    /** Success */
    resBody: Types.ExampleObject
    reqBody: Types.ExampleObject
  }
}

The id is readOnly: true and therefore not needed in the request, while the value is writeOnly: true and therefore not needed in the response.

Describe the solution you'd like

Expected output is like below:

/* eslint-disable */
import type * as Types from '../@types'

export type Methods = {
  put: {
    status: 200
    /** Success */
    resBody: Omit<Types.ExampleObject, "value">
    reqBody: Omit<Types.ExampleObject, "id">
  }
}

Omit the writeOnly properties for the resBody type, and conversely, omit the readOnly properties for the reqBody type.

Describe alternatives you've considered

Additional context

Environment

• Package version: v0.21.0