Add devcontainer

.vscode/tasks.json

@@ -0,0 +1,31 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Start Home Assistant",
+            "type": "shell",
+            "command": "/workspaces/addons/.devcontainer/supervisor.sh",
+            "group": {
+                "kind": "test",
+                "isDefault": true,
+            },
+            "presentation": {
+                "reveal": "always",
+                "panel": "new"
+            },
+            "problemMatcher": []
+        },{
+            "label": "Run Home Assistant CLI",
+            "type": "shell",
+            "command": "docker exec -ti hassio_cli /usr/bin/cli.sh",
+            "group": "test",
+            "presentation": {
+                "reveal": "always",
+                "panel": "new"
+            },
+            "problemMatcher": []
+        }
+    ]
+}