Add scripts for integration test setup and docs generation

* Add an OpenPGP test keypair.
 * Move script parts of documentation into script, so they can be used on a fresh Ubuntu 20.04 system
   for within a github action to setup a csaf_provider and upload documents to it for an integration test.
 * Use dineshsonachalam/markdown-autodocs in github action to automatically
   insert lines from the scripts into the docs.

Co-authored-by: Bernhard Reiter <bernhard@intevation.de>

docs/scripts/uploadToProvider.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+#
+# Desc: Call ./downloadExamples.sh and then try csaf_uploader.
+#
+# This file is Free Software under the MIT License
+# without warranty, see README.md and LICENSES/MIT.txt for details.
+#
+# SPDX-License-Identifier: MIT
+#
+# SPDX-FileCopyrightText: 2022 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
+# Software-Engineering: 2022 Intevation GmbH <https://intevation.de>
+
+set -e
+
+
+# assumes that the following script only downloads file with filenames
+# following https://docs.oasis-open.org/csaf/csaf/v2.0/cs01/csaf-v2.0-cs01.html#51-filename
+# which are save to process further
+./downloadExamples.sh
+
+TLPs=("white" "green" "amber" "red")
+COUNTER=0
+for f in $(ls csaf_examples);
+    do
+        ../../bin-linux-amd64/csaf_uploader -a upload -t ${TLPs[$COUNTER]} \
+        -u https://localhost:8443/cgi-bin/csaf_provider.go --insecure -P security123 \
+        --client-cert ~/devca1/testclient1.crt --client-key ~/devca1/testclient1-key.pem \
+        ./csaf_examples/"$f";
+        let COUNTER++
+    done;