Support debugging Mocha

Add launch configuration for VS Code to debug Mocha.

Author: martincostello

.vscode/launch.json

@@ -0,0 +1,23 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Test",
+      "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
+      "args": [
+        "--reporter",
+        "dot",
+        "--slow",
+        "5000",
+        "--colors",
+        "${workspaceFolder}/test/**/*.js",
+      ],
+      "internalConsoleOptions": "openOnSessionStart",
+      "skipFiles": [
+        "<node_internals>/**"
+      ]
+    }
+  ]
+}