Possibility to dynamic import the wasm.

Hi, there

this is a good repo, solved us a lot of problem, I am trying to explore a way to use the wasm as a plugin and on the host, we can dynamically import the wasm module, if something goes wrong, like the wasm is not correct, or the wasm is missing, we should catch the file missing exception, and do a failure recovery, or we want to refresh the wasm for every 5 min, how could I achieve it?

该 issue 没有指定文件、测试或入口点；首先应定位仓库中用于加载 WebAssembly 和进行主机集成的 API。要完成这项工作，需要为动态加载模块、从缺失或无效模块中恢复以及定期刷新模块定义一种明确的方法。

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