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

workflows/Gmail/0036_Gmail_GoogleDrive_Import.json

@@ -0,0 +1,93 @@
+{
+  "nodes": [
+    {
+      "name": "Gmail1",
+      "type": "n8n-nodes-base.gmail",
+      "position": [
+        -34.5,
+        449.5
+      ],
+      "parameters": {
+        "resource": "message",
+        "operation": "getAll",
+        "additionalFields": {
+          "format": "resolved",
+          "labelIds": [
+            "Label_1819449526183990002"
+          ]
+        }
+      },
+      "credentials": {
+        "gmailOAuth2": "Gmail"
+      },
+      "typeVersion": 1
+    },
+    {
+      "name": "Upload File1",
+      "type": "n8n-nodes-base.googleDrive",
+      "position": [
+        115.5,
+        449.5
+      ],
+      "parameters": {
+        "name": "={{$binary.attachment_0.fileName}}",
+        "parents": [
+          "1I-tBNWFhH2FwcyiKeBOcGseWktF-nXBr"
+        ],
+        "binaryData": true,
+        "resolveData": true,
+        "authentication": "oAuth2",
+        "binaryPropertyName": "attachment_0"
+      },
+      "credentials": {
+        "googleDriveOAuth2Api": "Google Drive OAuth2 API"
+      },
+      "typeVersion": 1
+    },
+    {
+      "name": "Get attachment Link",
+      "type": "n8n-nodes-base.set",
+      "position": [
+        280,
+        450
+      ],
+      "parameters": {
+        "values": {
+          "string": [
+            {
+              "name": "mp4_attachment",
+              "value": "={{$json[\"webViewLink\"]}}"
+            }
+          ]
+        },
+        "options": {},
+        "keepOnlySet": true
+      },
+      "typeVersion": 1
+    }
+  ],
+  "connections": {
+    "Gmail1": {
+      "main": [
+        [
+          {
+            "node": "Upload File1",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Upload File1": {
+      "main": [
+        [
+          {
+            "node": "Get attachment Link",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  }
+}