Migrate some changes from LPU.py in main neurokernel repo (make lpu_parser() call graph_to_dicts(), assign 'id' attrib of synapse edges if not explicitly set).
Migrate some changes from LPU.py in main neurokernel repo (make lpu_parser() call graph_to_dicts(), assign 'id' attrib of synapse edges if not explicitly set).

neurokernel/lamina