message: Add transaction id to packed_transaction abi
diff: @@ -268,12 +268,14 @@ namespace impl {
  template<typename Resolver>
  static void add(mutable_variant_object &out, const char* name, const packed_transaction& ptrx, Resolver resolver) {
  mutable_variant_object mvo;
  + auto trx = ptrx.get_transaction();
  + mvo("id", trx.id());
  mvo("signatures", ptrx.signatures);
  mvo("compression", ptrx.compression);
  mvo("packed_context_free_data", ptrx.packed_context_free_data);
  mvo("context_free_data", ptrx.get_context_free_data());
  mvo("packed_trx", ptrx.packed_trx);
  - add(mvo, "transaction", ptrx.get_transaction(), resolver);
  + add(mvo, "transaction", trx, resolver);
  out(name, std::move(mvo));
  }
  