Added read method as a smoke test utility

tiled/client/smoke.py

@@ -0,0 +1,20 @@
+def read(node, faulty_docs=[], verbose=False):
+    if node.structure_family == "container":
+        for key, child_node in node.items():
+            fault_result = read(child_node)
+            if len(fault_result) > 0:
+                faulty_docs.append(fault_result)
+    else:
+        try:
+            if verbose:
+                print(f"reading node with data: {node.item['id']}")
+            tmp = node.read()  # noqa: F841
+        except Exception:
+            if verbose:
+                print(
+                    f"Node {node.item['id']} does not have a read method or data is fault"
+                )
+            faulty_docs.append(node.uri)
+            return faulty_docs
+
+    return faulty_docs