[swig] ConfigParser: Add items() into Python interface (RhBug:1692044)
[swig] ConfigParser: Add items() into Python interface (RhBug:1692044)

New method "items(section, raw=False)".
For better compatibility with Python ConfigParser.
The method is used by dnf-plugin-spacewalk.

Closes: #704
Approved by: j-mracek

hughsie/libhif,rpm-software-management/libdnf,hughsie/libhif,rpm-software-management/libhif,rpm-software-management/libhif,rpm-software-management/libhif,rpm-software-management/libdnf,rpm-software-management/libhif,hughsie/libhif,rpm-software-management/libdnf,hughsie/libhif,rpm-software-management/libdnf