zbus_macros 3.5.0

• Pass on all attributes of dbus_proxy, not just doc. So you can
  deprecate dbus_proxy methods for example.
• Add from_message method to generated signal structs.
• Add 'assume_defaults' attribute to dbus_proxy (defaulting to true),
  which reflects the status quo: currently, all generated proxies assume
  (and auto-generate) some default values for path and service. In some
  cases, the auto-generated values could be wrong and misleading. The new
  attribute allows to selectively disable the implicit default.