message: updated plugin bindings to include PluginModule from plugin-js
diff: import * as Types from "./types";
  -import {
  - Client,
  - PluginModule,
  - MaybeAsync
  -} from "@polywrap/core-js";
  +import { Client, MaybeAsync } from "@polywrap/core-js";
  +import { PluginModule } from "@polywrap/plugin-js";
  {{#moduleType}}
  {{#methods}}
  