Add an easy to use local demo of Motion S3 connector

Create a local demo of Motion s3 connector that focuses on ease of use
by relaxing the Filecoin interaction in favour of purely storing data
onto the local disk. This is to unblock users who are most interested in
the Motion S3 integration part.

Add README with example usage.

local/README.md

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+# Motion S3 Connector: Local Storage
+
+## Overview
+This directory contains the setup for a local instance of the Motion and Motion S3 connector. It demonstrates the use of local disk storage for data, primarily stored in `$HOME/.motion`. This path can be customized using the `MOTION_HOME` environment variable.
+
+This setup is intended for demonstration purposes only and does not connect with the Filecoin network. It highlights the utilization of the DeStor REST API as a backend for the AWS S3 API.
+
+## Prerequisites
+- Docker and Docker Compose installed
+- AWS CLI installed
+
+## Configuration
+- **Default Storage Directory:** `$HOME/.motion` (modifiable via `MOTION_HOME`)
+- **Credentials Configuration:** Edit [`authdata.json`](../authdata.json) or set `S3AUTH_CONFIG` (details in [CloudServer documentation](https://github.com/filecoin-project/motion-cloudserver/blob/378f6264f945eddd701f197280f3d94b2a3db1a9/docs/GETTING_STARTED.rst#setting-your-own-access-and-secret-key-pairs))
+- **AWS CLI Endpoint URL:** `http://localhost:8000`
+
+## Quick Start
+1. **Prepare Storage Directory:** Ensure `MOTION_HOME` exists (default: `$HOME/.motion`).
+2. **Launch Services:** Execute `docker compose up`.
+3. **Set AWS CLI Credentials:**
+   ```
+   export AWS_ACCESS_KEY_ID='accessKey1'
+   export AWS_SECRET_ACCESS_KEY='verySecretKey1'
+   export AWS_DEFAULT_REGION='location-motion-v1'
+   ```
+4. **Interact Using AWS CLI:** Use `--endpoint-url http://localhost:8000` for AWS CLI commands.
+
+To halt the services, press `Ctrl + C`.
+
+*Note: Use `MOTION_VERSION` and `MOTION_CLOUDSERVER_VERSION` environment variables to specify container versions.*
+
+## Example Usage
+Here's a basic example to demonstrate interaction with the Motion S3 Connector:
+```shell
+# Ensure MOTION_HOME directory
+mkdir -p $HOME/.motion
+
+# Start services in the background
+docker compose up -d
+
+# Configure AWS CLI credentials
+export AWS_ACCESS_KEY_ID='accessKey1' AWS_SECRET_ACCESS_KEY='verySecretKey1' AWS_DEFAULT_REGION='location-motion-v1'
+
+# Create a test file
+echo 'Hello Motion S3 connector!' > upload.txt
+
+# Create a new S3 bucket
+aws --endpoint-url http://localhost:8000 s3 mb s3://test-bucket
+
+# Upload a file to the bucket
+aws --endpoint-url http://localhost:8000 s3 cp upload.txt s3://test-bucket
+
+# List files in the bucket
+aws --endpoint-url http://localhost:8000 s3 ls s3://test-bucket
+
+# Download the file
+aws --endpoint-url http://localhost:8000 s3 cp s3://test-bucket/upload.txt download.txt
+
+# Remove the file from the bucket
+aws --endpoint-url http://localhost:8000 s3 rm s3://test-bucket/upload.txt
+
+# Delete the bucket
+aws --endpoint-url http://localhost:8000 s3 rb s3://test-bucket
+
+# Stop the services
+docker compose down
+```

local/docker-compose.yaml

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+version: '3.8'
+
+services:
+  motion:
+    platform: linux/amd64
+    image: ghcr.io/filecoin-project/motion:${MOTION_VERSION:-v0.2.3}
+    ports:
+      - 40080:40080
+    environment:
+      - MOTION_STORE_DIR=/usr/src/app/storage
+    volumes:
+      - motion-singularity-volume:/usr/src/app/storage
+
+  cloudserver:
+    platform: linux/amd64
+    image: ghcr.io/filecoin-project/motion-cloudserver:${MOTION_CLOUDSERVER_VERSION:-0.1.1}
+    environment:
+      REMOTE_MANAGEMENT_DISABLE: 1
+      S3DATA: 'multiple'
+      MOTION_HOST: 'motion'
+    ports:
+      - "8000:8000"
+    volumes:
+      - ${MOTION_HOME:-$HOME/.motion}/zenko/localData:/usr/src/app/localData
+      - ${MOTION_HOME:-$HOME/.motion}/zenko/localMetadata:/usr/src/app/localMetadata
+      - ${S3AUTH_CONFIG:-$PWD/../authdata.json}:/usr/src/app/conf/authdata.json
+    depends_on:
+      - motion
+
+volumes:
+  motion-singularity-volume:
+    driver: local
+    driver_opts:
+      type: 'none'
+      o: 'bind'
+      device: ${MOTION_HOME:-$HOME/.motion}