Added javafx part to main client test, instructions are in comments in the code

.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+    "configurations": [
+        {
+            "type": "java",
+            "name": "CodeLens (Launch) - Main",
+            "request": "launch",
+            "mainClass": "Main",
+            "projectName": "OOP-Project"
+        }
+    ]
+}