Add launch.json

.vscode/launch.json

@@ -0,0 +1,29 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Listen for XDebug",
+            "type": "php",
+            "request": "launch",
+            "port": 9000
+        },
+        {
+            "name": "Launch currently open script",
+            "type": "php",
+            "request": "launch",
+            "program": "${file}",
+            "cwd": "${fileDirname}",
+            "port": 9000
+        },
+        {
+            "name": "PHPUnit",
+            "type": "php",
+            "request": "launch",
+            "program": "${workspaceRoot}/vendor/phpunit/phpunit/phpunit",
+            "cwd": "${workspaceRoot}",
+            "args": [
+                // "--filter", "CompletionTest"
+            ]
+        }
+    ]
+}