Added support for devcontainer

.devcontainer/devcontainer.json

@@ -0,0 +1,25 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+	"name": "Python 3",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/python:0-3.10",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// installs all requirements in requirements.txt and the components manifests.json
+	"updateContentCommand": {
+		"requirements": "pip3 install --user -r requirements.txt",
+		"component_requirements": "pip3 install --user $(cat custom_components/eloverblik/manifest.json | jq -r '.requirements|join(\" \")')"
+	}
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

requirements.txt

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+homeassistant==2023.1.3