chore(ci): added Godot vscode extension recommendation, and .prototools for managing dotnet versions

.prototools

@@ -0,0 +1,2 @@
+[plugins.tools]
+dotnet = "https://raw.githubusercontent.com/RemiKalbe/proto-dotnet-plugin/main/plugin.toml"

.vscode/extensions.json

@@ -13,6 +13,8 @@
     "usernamehw.errorlens",
     "Vue.volar",
     "vitest.explorer",
-    "yzhang.markdown-all-in-one"
+    "yzhang.markdown-all-in-one",
+    "geequlim.godot-tools",
+    "alfish.godot-files"
   ]
 }