Python bindings for mac not working due to different library suffix

[tmadlener]

The python bindings are not working on macOS, because the suffix for shared libraries is dylib instead of .so. We currently explicitly go looking for .so though in our __init__.py:

EDM4hep/python/edm4hep/__init__.py

Lines 6 to 8 in 3d271d0

	res = ROOT.gSystem.Load('libedm4hepDict.so')
	if res < 0:
	raise RuntimeError('Failed to load libedm4hepDict.so')

It might be enough to simply remove the suffix and let ROOT do the OS specific handling, but I am not sure.