message: Align binaryen linear memory buffer
  resolves the alignment crashes within mulit_index abi test
diff: @@ -143,7 +143,7 @@ class binaryen_runtime : public eosio::chain::wasm_runtime_interface {
  std::unique_ptr<wasm_instantiated_module_interface> instantiate_module(const char* code_bytes, size_t code_size, std::vector<uint8_t> initial_memory) override;
  private:
  - linear_memory_type _memory;
  + linear_memory_type _memory __attribute__ ((aligned (4096)));
  };
  /**
  