Revert "inventory: drop the constructed inventory for now until we are using it for something specific."

This reverts commit 65410b9d5d.

inventory/zzz-inventory.config

@@ -0,0 +1,17 @@
+plugin: constructed
+strict: False
+compose:
+groups:
+    virthost02_guests: vmhost is defined and vmhost == 'virthost01.phx2.fedoraproject.org'
+keyed_groups:
+    - prefix: distro
+      key: ansible_distribution
+
+    - prefix: vmhost
+      key: vmhost
+
+    - prefix: datacenter
+      key: datacenter
+
+    - prefix: virt
+      key: ansible_virtualization_role