Support building wheels (PEP-427)
Support building wheels (PEP-427)

With that, building and uploading wheels to PyPI is only one "python
setup.py bdist_wheel" away.

Change-Id: I3d25f7157b429d44f338fab9a3d68dbf9c73be8c

openstack/ironic-lib,citrix-openstack-build/ironic-lib,faizan-barmawer/elytics,NaohiroTamura/ironic-lib,faizan-barmawer/ironic-lib