refactor!: File Manager (#1633)

* feat(vscode): added launch.json to dbg
* feat(file_manager): Make use of a global instance
* feat(file_manager): Allow for file and folder instances to be empty
* refactor(GlobalsService): Update code of global service (untested)

.vscode/launch.json

@@ -0,0 +1,14 @@
+{
+    // 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": "GTA5.exe Attach",
+            "type": "cppvsdbg",
+            "request": "attach",
+            "processId": "${command:pickProcess}"
+        }
+    ]
+}