- Bump version: 10.0.18 → 10.0.19

- package: Always include patches and number all sources and patches
This ensures that stuff is applied reliably and all sources and patches
are included as expected.
Then the added kiwi-revert-bls-default-for-suse.patch is applied
conditionally for SUSE distributions.

- Bump version: 10.0.17 → 10.0.18

- package: adjust openSUSE patch

- Bump version: 10.0.16 → 10.0.17

- Fixed box plugin documentation
The provided example was no longer correct according to
changes on the image description referenced in the example

- Add procps to Tumbleweed integration tests

- Add procps to Tumbleweed integration tests

- Fix sdist upstream tarball contents
The .virtualenv.dev-requirements.txt file is referenced by tox.ini
but not put into the sdist tarball and therefore missing in the
pypi upstream data.

- Drop use of obsolete pkg_resources
As documented in https://setuptools.pypa.io/en/latest/pkg_resources.html
the use of pkg_resources is obsolete and will cause issues.