Add basic Python devcontainer configuration.

This sets up a configuration for VS Code devcontainers.  Which allows anyone
with VS Code using the Dev Containers plugin to have a prescribed development
environment ready to go immediately with all needed dependencies.  This
configuration may be incomplete as it's just the initial configuration.

.devcontainer/devcontainer.json

@@ -0,0 +1,35 @@
+// 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:1-3.12-bullseye",
+	"features": {
+		"ghcr.io/devcontainers/features/git:1": {},
+		"ghcr.io/devcontainers/features/github-cli:1": {},
+		"ghcr.io/devcontainers-contrib/features/pre-commit:2": {}
+	},
+
+	// 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": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "pip3 install --user -r requirements.txt",
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"ms-python.vscode-pylance",
+				"ms-python.python"
+			]
+		}
+	}
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/devcontainer.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2023 Alex Brandt
+
+SPDX-License-Identifier: MIT

.pre-commit-config.yaml

@@ -8,6 +8,7 @@ repos:
     hooks:
     -   id: check-yaml
     -   id: check-json
+        exclude: '.devcontainer\.json'
     -   id: end-of-file-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/pycqa/isort