feat: Add features, extensions, and postCreate script

Author: jojievaliente

.devcontainer/devcontainer.json

@@ -1,4 +1,20 @@
 {
   "name": "Universal - Latest",
-  "image": "mcr.microsoft.com/devcontainers/universal:latest"
+  "image": "mcr.microsoft.com/devcontainers/universal:latest",
+  "features": {
+    "ghcr.io/stu-bell/devcontainer-features/python:0": {
+      "apt_get": true,
+      "installTools": true,
+      "min_python_version": "3.15"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-python.debugpy"
+      ]
+    }
+  },
+  "postCreateCommand": "bash .devcontainer/postCreate.sh"
 }

.devcontainer/postCreate.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+sudo apt-get update
+sudo apt-get install sl
+echo "export PATH=\$PATH:/usr/games" >> ~/.bashrc
+echo "export PATH=\$PATH:/usr/games" >> ~/.zshrc