feat: adding fullnode x docker compose example (MystenLabs#9637)

## Description 

This is a docker compose configuration and some instructions for running
the fullnode+indexer+Pg locally on a desktop/laptop.

## Test Plan 

Just verified it starts up and catches up with the network epoch.

docker/fullnode-x/README.md

@@ -0,0 +1,21 @@
+
+0. Build the containers locally to your desktop/laptop with:
+   - `docker compose build`
+      - The build process can take a while to complete.
+
+1. First start postgres so you can create the DB with the `diesel` command:
+	- `docker compose up postgres -d`
+	  * **Note** that postgres will store its db data in `./postgres/data`
+	- `psql -U postgres -p 5432 -h localhost -c 'create database sui_indexer_testnet'`
+	- run these in sui.git/crates/sui-indexer:
+      * `diesel setup --database-url=postgres://postgres:admin@localhost:5432/sui_indexer_testnet`
+
+2. Copy the fullnode.yaml and genesis.blob files for the network to use and put them in the `fullnode/config/` folder.
+
+3. `docker compose up fullnode -d`
+   - verify it's working by watching the logs with `docker compose logs fullnode -f`
+
+4. Once the full node is working, then start indexer with:  `docker compose up indexer -d`
+
+	- You will see the indexer catching up checkpoint by checkpoint until it's up to date and ready to serve requests.
+	  `docker compose logs indexer | tail -30`

docker/fullnode-x/docker-compose.yaml

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+version: "3.9"
+
+services:
+
+  fullnode:
+    build:
+      context: ../..
+      dockerfile: ./docker/sui-node/Dockerfile
+      args:
+        # update with git sha of whichever branch you're building on.
+        GIT_REVISION: db24658bc9
+        BUILD_DATE: today
+
+    environment:
+      - LD_PRELOAD
+      - RUST_JSON_LOG="true"
+      - RUST_LOG="info"
+      # don't use debug, it generates volumes of data.
+    image: sui-node:latest
+    command: /opt/sui/entry.sh
+    restart: unless-stopped
+    # populate your local ./fullnode/config/ directory with fullnode.yaml and genesis.blob for the network you want to use.
+    volumes:
+      - ./fullnode:/opt/sui
+    ports:
+      - 9000
+      - 9184
+      - target: 8084
+        published: 8084
+        protocol: udp
+
+  indexer:
+    build:
+      context: ../..
+      dockerfile: ./docker/sui-indexer/Dockerfile
+    image: sui-indexer:latest
+    command: /opt/sui/indexer.sh
+    restart: unless-stopped
+    volumes:
+      - ./indexer:/opt/sui
+    environment:
+      - RUST_LOG="info"
+      - RUST_JSON_LOG="true"
+      - DATABASE_URL=postgres://postgres:admin@postgres:5432/sui_indexer_testnet
+      - RPC_CLIENT_URL=http://fullnode:9000
+    ports:
+      - target: 9000
+        published: 9000
+        protocol: tcp
+      - 9184
+    depends_on:
+      - postgres
+      - fullnode
+
+  postgres:
+    image: postgres:15
+    restart: unless-stopped
+    environment:
+      - POSTGRES_PASSWORD=admin
+    ports:
+      - target: 5432
+        published: 5432
+    volumes:
+      - ./postgres/data:/var/lib/postgresql/data

docker/fullnode-x/fullnode/entry.sh

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+#!/bin/bash
+# Copyright (c) Mysten Labs, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+unset LD_PRELOAD
+
+/usr/local/bin/sui-node --config-path /opt/sui/config/fullnode.yaml
+

docker/fullnode-x/indexer/indexer.sh

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+#!/bin/bash
+# Copyright (c) Mysten Labs, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+/usr/local/bin/sui-indexer --db-url ${DATABASE_URL} --rpc-client-url ${RPC_CLIENT_URL}