Feature Request

Make ExtensionAppAuthenticator bean and OboAuthenticator bean conditional.

Description of Problem:

ExtensionAppAuthenticator bean defined in BdkOboServiceConfig is not conditional on missing, as the other beans, while it is the same for OboAuthenticator. This forbidden users to inject their own implementation for them ( we are working for a MT solution, so need us to have an extension app authenticator being able to authenticate the extension app by the tenant id, so it could be injected in the current circle trust controller).

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Potential Solutions:

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