added on nodes for rtdb and firestore andmade nodes pass through msg objects with as little changes as possible

storage/storage-list.html

@@ -46,4 +46,25 @@
 
 <script type="text/x-red" data-help-name="storage-list">
   <p>A node that list files from bucket path in google cloud storage</p>
+  Lists the contents of files in a bucket
+<p>
+If "path" is defined in the payload, only files beginning with that path will be returned. I fomitted, the root level of the bucket is listed.
+A path can also be deep likes this; "foo/bar/baz". "delimiter" is the charatcer used to delimit directory levels, "/" by default.
+<p>
+input:
+
+    {
+        "payload": {
+            "bucket": "xyzzyz123.appspot.com",  // optional
+            "path": "directory1", // optional
+            "delimiter": "/" // optional
+         }
+    }
+<p>
+output: An array of google cloud-storage File objects. If you take this output and send it to a function which outputs a payload like this;
+
+    {"files": array_of_File_obejcts}
+   <p>
+The storage-read module will read all file contents and output an object of filename keyed Buffer objects instead of the normal one.
+
 </script>