Create VSCode launch.json and add config for debugging tests

Author: mohsen1

.vscode/launch.json

@@ -0,0 +1,18 @@
+{
+  // 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": "Debug current test",
+      "cwd": "${workspaceFolder}",
+      "program": "${workspaceFolder}/node_modules/.bin/ava",
+      "args": ["debug", "--port", "9287", "${file}"],
+      "request": "launch",
+      "port": 9287,
+      "skipFiles": ["<node_internals>/**"],
+      "type": "pwa-node"
+    }
+  ]
+}