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/ooniprobe.conf.disabled

@@ -0,0 +1,15 @@
+{
+  "_": "",
+  "_version": 1,
+  "_informed_consent": true,
+  "sharing": {
+    "upload_results": true
+  },
+  "nettests": {
+    "websites_url_limit": 0,
+    "websites_enabled_category_codes": null
+  },
+  "advanced": {
+    "send_crash_reports": true
+  }
+}