error handling and transformation improvements

Added vscode config for easy debug including all modules.

src/.vscode/launch.json

@@ -0,0 +1,26 @@
+{
+    // 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": "Launch Package",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${fileDirname}"
+        },
+        {
+            "name": "Debug with Build Flags",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "program": "${workspaceFolder}/mdemory-app-qt/main.go",
+           // "buildFlags": "-gcflags='all=-N -l'",
+            "args": [],
+            "env": {},
+            "cwd": "${workspaceFolder}"
+        }
+    ]
+}