feat(transform-import): Add style option to fully replace babel-plugin-import

[cyjake]

It looks like the transform-import plugin is just one option away from fully replace babel-plugin-import. When compiling imports of web component libraries like ant-design, babel-plugin-import will transform following import:

import { Button, InputNumber } from 'antd';

into

import Button from 'antd/lib/button';
import 'antd/lib/button/style';
import InputNumber from 'antd/lib/input-number';
import 'antd/lib/input-number/style';

Hence a corresponding config.style option is added to make transform-import plugin able to perform similar action. Should be able to close swc-project/swc#3042 for good.

[changeset-bot]

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