hel-iso

当 hel-micro、hel-micro-core 包体被提升到 exnternal 里载入时，isSubApp判断会失效，可独立安装此包来调用 isSubApp 函数

bofore

import { isSubApp } from 'hel-micro';
// or
import { isSubApp } from 'hel-lib-proxy';

after

import { isSubApp } from 'hel-iso';
// or just import in entry file first line
import 'hel-iso';

// then you can call isSubApp that can return right result in any other files