Add inventory plugins for buildah and podman (#963)

Add inventory plugins for buildah and podman, unit tests and functional CI tests.
---------

Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

playbooks/examples/node_app/app.js

@@ -0,0 +1,11 @@
+const express = require('express');
+const app = express();
+
+app.get('/predict', (req, res) => {
+  // Dummy prediction endpoint
+  res.json({ prediction: Math.random() });
+});
+
+app.listen(3000, () => console.log('AI prediction API listening on :3000'));
+
+

playbooks/examples/node_app/package-lock.json

@@ -0,0 +1,18 @@
+{
+  "name": "ai-prediction-api",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "ai-prediction-api",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "express": "^4.18.2"
+      }
+    }
+  }
+}
+
+

playbooks/examples/node_app/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "ai-prediction-api",
+  "version": "1.0.0",
+  "description": "Sample Node.js AI prediction API for Buildah example",
+  "main": "app.js",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.18.2"
+  }
+}
+
+