add panduza local broker discovery service function to script (#91)
* add panduza local broker discovery service function to script
* Make client easier to create with local discovery, can precise a platform name to choose the platform you want to use on your local network
* Delete panduza/core/panduza_local_broker_discovery.py
* Local discovery works with alias
* ask to the user if he wants to use the discover platform
* Show the user a list of platform instead of asking him one after another
* Comments has been changed to respect new function
* change to follow new spec of local discovery answer
* function to make user friendly moving state of relay
* fix get_state_open (forgot to return the value)
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Co-authored-by: Damien Albisson <UF205DAL@net.elsys-design.com>