Add layer-python example

sample-apps/layer-python/function/lambda_function.py

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+import requests
+
+def lambda_handler(event, context):
+    print(f"Version of requests library: {requests.__version__}")
+    request = requests.get('https://api.github.com/')
+    return {
+        'statusCode': request.status_code,
+        'body': request.text
+    }

sample-apps/layer-python/layer/Dockerfile

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+FROM amazonlinux:2023
+RUN dnf update && dnf install -y python3.11 zip && dnf clean all

sample-apps/layer-python/layer/docker_install.sh

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+python3.11 -m venv create_layer
+source create_layer/bin/activate
+pip install -r requirements.txt
+
+mkdir python
+cp -r create_layer/lib python/
+zip -r layer_content.zip python

sample-apps/layer-python/layer/docker_runner.sh

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+container_name=lambda_python_layer_container
+docker_image=lambda_python_layer_image:example
+
+docker run -td --name=$container_name $docker_image
+docker cp ./requirements.txt $container_name:/
+
+docker exec -i $container_name /bin/bash < ./docker_install.sh
+docker cp $container_name:/layer_content.zip layer_content.zip
+
+docker stop $container_name
+docker rm $container_name

sample-apps/layer-python/layer/requirements.txt

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+requests==2.31.0