returned type validation inconsistent between lightweight component and container build

[SinaChavoshi]

Returned type validation for build_python_component is defined as _component_builder.py#L313

    if 'return' in  annotations and annotations['return'] not in [int, float, str, bool]:
      raise Exception('Output type not supported and supported types are [int, float, str, bool]')

Which does not support NamedTuples, however func_to_container_op supports NamedTuple with logic defined @ _python_op.py#L136

[Ark-kun]

Lightweight components are more advanced in multiple aspects. They support multiple outputs and allow specifying arbitrary types. Python container components will be soon be merged with lightweight components an use the lightweight components' code generator, so this issue will be fixed by that effort.

[Ark-kun]

Will be fixed by #1687