adding remote container definition (#256)

Author: dzsquared

samples/samples-python/.devcontainer/Dockerfile

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+# Find the Dockerfile at this URL
+# https://github.com/Azure/azure-functions-docker/blob/dev/host/4/bullseye/amd64/python/python39/python39-core-tools.Dockerfile
+FROM mcr.microsoft.com/azure-functions/python:4-python3.9-core-tools
+
+COPY patch-core-tools.sh /tmp/patch-core-tools.sh
+RUN chmod +x /tmp/patch-core-tools.sh
+RUN /tmp/patch-core-tools.sh

samples/samples-python/.devcontainer/README.md

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+# Python devcontainer for SQL bindings public preview
+
+The use of SQL bindings during the early public preview phase requires additional setup for local development due to the requirement of the Azure Functions host 4.5.0 or greater.  With the included files (`devcontainer.json`, `Dockerfile`, and `patch-core-tools.sh`), your environment can be automatically setup to support development for SQL bindings in VS Code remote containers or Codespaces.  Once inside this environment, your VS Code tasks (F5 to run) will perform as expected.
+
+For more on remote development in VS Code, please check out their [documentation](https://code.visualstudio.com/docs/remote/containers).
+
+
+## What does this environment include?
+
+This environment definition takes the standard Python 3.9 and Azure Functions development environment image as its base image, then applies an update to a pre-release version of the [Azure Functions Core Tools](https://github.com/azure/azure-functions-core-tools).
+
+The update to Azure Functions Core Tools takes place in [patch-core-tools.sh](patch-core-tools.sh).

samples/samples-python/.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.234.0/containers/azure-functions-python-3
+{
+	"name": "Azure Functions & Python 3",
+	"dockerFile": "Dockerfile",
+	"forwardPorts": [ 7071 ],
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": {},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-azuretools.vscode-azurefunctions",
+		"ms-azuretools.vscode-docker",
+		"ms-python.python",
+		"ms-mssql.mssql"
+	],
+	
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "npm install",
+
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode"
+}

samples/samples-python/.devcontainer/patch-core-tools.sh

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+#!/bin/sh
+mkdir /tmp/patch-core-tools
+cd /tmp/patch-core-tools
+wget -O localdev.zip https://go.microsoft.com/fwlink/?linkid=2196321
+unzip localdev.zip -d core-tools
+cp -r core-tools/* /usr/lib/azure-functions-core-tools-4/