feat: add folder support for workflows (fixes #70)

workflows/Manual/1098_Manual_Import_Triggered.json

@@ -0,0 +1,39 @@
+{
+  "nodes": [
+    {
+      "name": "On clicking 'execute'",
+      "type": "n8n-nodes-base.manualTrigger",
+      "position": [
+        250,
+        300
+      ],
+      "parameters": {},
+      "typeVersion": 1
+    },
+    {
+      "name": "Get Local Datetime",
+      "type": "n8n-nodes-base.function",
+      "position": [
+        450,
+        300
+      ],
+      "parameters": {
+        "functionCode": "const moment = require('moment');\n\nlet date = moment().tz($env['GENERIC_TIMEZONE']);\n\nlet year = date.year();\nlet month = date.month(); // zero-indexed!\nlet day = date.date();\nlet hour = date.hours();\nlet minute = date.minutes();\nlet second = date.seconds();\nlet millisecond = date.millisecond();\nlet formatted = date.format('YYYY-MM-DD HH:mm:ss.SSS Z');\n\nreturn [\n  {\n    json: {\n      utc: date,\n      year: year,\n      month: month, // zero-indexed!\n      day: day,\n      hour: hour,\n      minute: minute,\n      second: second,\n      millisecond: millisecond,\n      formatted: formatted\n    }\n  }\n];\n"
+      },
+      "typeVersion": 1
+    }
+  ],
+  "connections": {
+    "On clicking 'execute'": {
+      "main": [
+        [
+          {
+            "node": "Get Local Datetime",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  }
+}