adding a codespace

Author: MattReimer

.devcontainer/devcontainer.json

@@ -0,0 +1,23 @@
+{
+	"name": "RSXML Python",
+	"image": "mcr.microsoft.com/devcontainers/python:3.12",
+	"features": {
+		"ghcr.io/devcontainers/features/common-utils:2": {
+			"installZsh": "true",
+			"configureZshAsDefaultShell": "true",
+			"installOhMyZsh": "true",
+			"upgradePackages": "false"
+		}
+	},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"ms-python.python",
+				"ms-python.vscode-pylance",
+				"charliermarsh.ruff",
+				"tamasfe.even-better-toml"
+			]
+		}
+	},
+	"postCreateCommand": "pip install uv && uv pip install --system -e .[dev]"
+}