Add Procserv on Ubuntu 22.04.2 LTS

[hjunkes]

When I try to install procserv on Ubuntu 22.04.2 LTS 'make install' stumbles over

/usr/local/lib/python3.10/dist-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.

(cd .; /usr/bin/python setup.py build
--build-base /opt/procServ/build)
make[1]: Entering directory '/opt/procServ'
/usr/bin/mkdir -p '/usr/local/bin'
/usr/bin/install -c procServ '/usr/local/bin'
/usr/bin/python ./setup.py install
--prefix /usr/local
/usr/local/lib/python3.10/dist-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.
!!

    ********************************************************************************
    Please avoid running ``setup.py`` directly.
    Instead, use pypa/build, pypa/installer, pypa/build or
    other standards-based tools.

    See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.
    ********************************************************************************

!!
self.initialize_options()
/usr/local/lib/python3.10/dist-packages/setuptools/_distutils/cmd.py:66: EasyInstallDeprecationWarning: easy_install command is deprecated.
!!

    ********************************************************************************
    Please avoid running ``setup.py`` and ``easy_install``.
    Instead, use pypa/build, pypa/installer, pypa/build or
    other standards-based tools.

    See https://github.com/pypa/setuptools/issues/917 for details.
    ********************************************************************************

!!
self.initialize_options()
error: [Errno 2] No such file or directory: '/usr/local/lib/systemd/user-generators/systemd-procserv-generator-user'
make[1]: *** [Makefile:1011: install-exec-local] Error 1
make[1]: Leaving directory '/opt/procServ'
make: *** [Makefile:851: install-am] Error 2