debian: run as a daemon, ask informed consent (#162)

* Set verbose mode, depend on adduser

* Run as daemon

* Generate manpage

* Implement informed consent

* Set version

* Switch format to native

* Set environment

* Update packaging

* Create test and release pipelines

* Update debian/ooniprobe-cli.service

Co-authored-by: Simone Basso <bassosimone@gmail.com>

* Update debian/ooniprobe-cli.service

Co-authored-by: Simone Basso <bassosimone@gmail.com>

* Update debian/ooniprobe.conf.disabled

Co-authored-by: Simone Basso <bassosimone@gmail.com>

* fix(linux-debian-packages): build also on pull requests

Otherwise there's no way for us to test :^).

* fix(debian/control): ubuntu 20.04 has debhelper 12

See https://packages.ubuntu.com/focal/debhelper

* fix(debian/control): debhelper-compat relations doesn't work the way I thought

* Update debian/ooniprobe-cli.timer

Co-authored-by: Simone Basso <bassosimone@gmail.com>

debian/source/format

@@ -1 +1 @@
-3.0 (quilt)
+3.0 (native)