feat: added devcontainer.json to use the previously uploaded dockerfile in a devpod

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+  "name": "C++ DEV",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "remoteUser": "dev",
+  "features": {
+    "ghcr.io/duduribeiro/devcontainer-features/neovim:1": {
+      "version": "stable"
+    }
+  },
+  "mounts": [
+    "source=${env:HOME}/.config/nvim,target=/home/dev/.config/nvim,type=bind"
+  ]
+}