puppet_agent_facter_versions: Add OpenVox/OpenFact versions

Since Perforce stopped building open source AIO packages, we're
continuing the list with OpenVox/OpenFact builds.

Alternative implementation for voxpupuli#227

Author: bastelfreak

ext/puppet_agent_facter_versions.json

@@ -1,4 +1,17 @@
 {
+  "8.23.1": "5.1.0",
+  "8.23.0": "5.1.0",
+  "8.22.1": "5.0.0",
+  "8.19.2": "4.11.0",
+  "8.19.1": "4.11.0",
+  "8.19.0": "4.11.0",
+  "8.18.1": "4.11.0",
+  "8.17.0": "4.11.0",
+  "8.16.0": "4.11.0",
+  "8.15.0": "4.11.0",
+  "8.14.0": "4.11.0",
+  "8.13.0": "4.11.0",
+  "8.12.1": "4.11.0",
   "8.12.0": "4.12.0",
   "8.11.0": "4.11.0",
   "8.10.0": "4.10.0",