Add iBGP workflow and LibreNMS client

@Aleksandr.Kurbatov We will need to test this together to verify that no info is missing for the Ansible playbooks I've added Simone as a reviewer just to keep him in the loop.

gso/oss-params-example.json

 {
   "GENERAL": {
-    "public_hostname": "https://gap.geant.org",
-    "environment": "lab"
+    "public_hostname": "https://gap.geant.org"
   },
   "NETBOX": {
     "api": "https://127.0.0.1:8000",