Add examples to release tarball

[knobix]

The examples provided via the examples/ directory are very useful to get started quickly with ciscoconfparse, IMHO.

Would it be possible to add the examples/ directory with its contents to the release tarball which is distributed at PyPI?

That would be great and give downstream (e.g. distro packagers) the ability to optionally package the examples if they want, e.g. to /usr/local/share/examples.