Added configuration module

Intended to load INI files from Elettra.
README added link to organisation documentation
Adding some simulated operations so the example scan will run
Fix broken simulator when accessing hdf5 file

 - No root / is required in the dataset name.
 - Example script open datafile as read-only
No need to use pkg_resources in a module

The main entry point should do the relevant pkg_resources.require()
Remove hard dependency on setuptools pkg_resources.require()

Not everyone uses setuptools and the example should still work
regardless