Zdm-client-py

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* modified examples
* copy examples in /usr/share/zdm/examples folder

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* Fix error in _handle_dn_msg decode msg to str with python3.5

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* Fix error manifest with empty jobs.

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New functionality:

* Verbose parameter to ZdmClient class

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Release with support Python >3

* Create ZDmClient
* Publish messages to ZDM
* Received Jobs from ZDM