Add network infrastructure

Add network group for filtering network hosts
Add network target for auth'ing to network hosts
Update playbooks to filter out network targets

inventory.yaml

@@ -7,6 +7,18 @@ all:
     ansible_user: ansible
     ansible_ssh_common_args: "-o ControlMaster=auto -o ControlPersist=60s -o ForwardAgent=yes"
 
+en1:
+  vars:
+    skylab_location: Newton MA
+  children:
+    network:
+      hosts:
+        core:
+          ansible_host: core.net.enp.one
+          ansible_port: 4242
+          skylab_description: Core Router
+          skylab_targets: [network]
+
 en2:
   vars:
     skylab_location: DigitalOcean NYC1