add vscode debug config

.vscode/launch.json

@@ -0,0 +1,22 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "oCIS server",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "program": "${workspaceFolder}/ocis/cmd/ocis",
+            "args": ["server"],
+            "env": {
+                "OCIS_LOG_LEVEL": "debug",
+                "OCIS_LOG_PRETTY": "true",
+                "OCIS_LOG_COLOR": "true",
+                "PROXY_ENABLE_BASIC_AUTH": "true"
+            }
+        },
+    ]
+}