add shell script to test Beremiz python code

currently only codestyle checking is done using pycodestyle (ex-pep8).
Later checks by flake8 and pylint maybe enabled.

[TOPOLOGY]
NetName=None
Nodes=0x01
Node2Present=0x01
Node2Name=SlaveNode
Node2DCFName=Slave_0_0.eds
EDSBaseName=eds