reimplement persistence approach

src/MessageHandler/binaryEncode.js

@@ -0,0 +1,16 @@
+import { writeStructs } from './syncStep1.js'
+import { integrateRemoteStructs } from './integrateRemoteStructs.js'
+import { readDeleteSet, writeDeleteSet } from './deleteSet.js'
+import BinaryEncoder from '../Binary/Encoder.js'
+
+export function fromBinary (y, decoder) {
+  integrateRemoteStructs(y, decoder)
+  readDeleteSet(y, decoder)
+}
+
+export function toBinary (y) {
+  let encoder = new BinaryEncoder()
+  writeStructs(y, encoder, new Map())
+  writeDeleteSet(y, encoder)
+  return encoder
+}