Add github codespaces config for web-based dev environment (#728)

* added dev containter

* added post create install

* image with python

.devcontainer/Dockerfile

@@ -0,0 +1,7 @@
+
+# A vscode remote container docker image with conda from
+# https://hub.docker.com/_/microsoft-vscode-devcontainers
+
+# A vscode remote container docker image with conda from
+# https://hub.docker.com/_/microsoft-vscode-devcontainers
+FROM mcr.microsoft.com/vscode/devcontainers/python:3.10

.devcontainer/devcontainer.json

@@ -0,0 +1,44 @@
+
+{
+	"name": "Python 3",
+	"build": {
+		"dockerfile": "Dockerfile",
+		"context": "..",
+	},
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			// Set *default* container specific settings.json values on container create.
+			"settings": { 
+				"python.defaultInterpreterPath": "/usr/local/bin/python",
+				"python.linting.enabled": true,
+				"python.linting.pylintEnabled": true,
+				"python.formatting.autopep8Path": "/usr/local/py-utils/bin/autopep8",
+				"python.formatting.blackPath": "/usr/local/py-utils/bin/black",
+				"python.formatting.yapfPath": "/usr/local/py-utils/bin/yapf",
+				"python.linting.banditPath": "/usr/local/py-utils/bin/bandit",
+				"python.linting.flake8Path": "/usr/local/py-utils/bin/flake8",
+				"python.linting.mypyPath": "/usr/local/py-utils/bin/mypy",
+				"python.linting.pycodestylePath": "/usr/local/py-utils/bin/pycodestyle",
+				"python.linting.pydocstylePath": "/usr/local/py-utils/bin/pydocstyle",
+				"python.linting.pylintPath": "/usr/local/py-utils/bin/pylint"
+			},
+
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"ms-python.python",
+				"ms-python.vscode-pylance"
+			]
+		}
+	},
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "pip install -e .",
+	"postCreateCommand": "pip install -r requirements.txt",
+
+	// Allows port 8888 used for Jupyter Notebook to be available locally.
+	"forwardPorts": [8888],
+	"remoteUser": "vscode"
+}