message: Expose loadRustModule
diff: import HdWallet from './HdWallet.js';
  import PaperWallet from './PaperWallet.js';
  -import RustModule from './RustModule.js';
  +import RustModule, {loadRustModule} from './RustModule.js';
  import Blake2b from './Blake2b.js';
  import Payload from './Payload.js';
  @@ -9,5 +9,6 @@ module.exports = {
  HdWallet,
  PaperWallet,
  RustModule,
  + loadRustModule,
  Blake2b,
  };
  