Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/vendor/doctrine/dbal/bin/doctrine-dbal.php

@@ -0,0 +1,55 @@
+<?php
+
+use Doctrine\DBAL\Tools\Console\ConsoleRunner;
+
+fwrite(
+    STDERR,
+    '[Warning] The use of this script is discouraged.'
+        . ' You find instructions on how to bootstrap the console runner in our documentation.'
+        . PHP_EOL,
+);
+
+echo PHP_EOL . PHP_EOL;
+
+$files       = [__DIR__ . '/../vendor/autoload.php', __DIR__ . '/../../../autoload.php'];
+$loader      = null;
+$cwd         = getcwd();
+$directories = [$cwd, $cwd . DIRECTORY_SEPARATOR . 'config'];
+$configFile  = null;
+
+foreach ($files as $file) {
+    if (file_exists($file)) {
+        $loader = require $file;
+
+        break;
+    }
+}
+
+if (! $loader) {
+    throw new RuntimeException('vendor/autoload.php could not be found. Did you run `php composer.phar install`?');
+}
+
+foreach ($directories as $directory) {
+    $configFile = $directory . DIRECTORY_SEPARATOR . 'cli-config.php';
+
+    if (file_exists($configFile)) {
+        break;
+    }
+}
+
+if (! file_exists($configFile)) {
+    ConsoleRunner::printCliConfigTemplate();
+
+    exit(1);
+}
+
+if (! is_readable($configFile)) {
+    echo 'Configuration file [' . $configFile . '] does not have read permission.' . PHP_EOL;
+
+    exit(1);
+}
+
+$commands           = [];
+$connectionProvider = require $configFile;
+
+ConsoleRunner::run($connectionProvider, $commands);