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/phar-io/version/src/VersionConstraintValue.php

@@ -0,0 +1,88 @@
+<?php declare(strict_types = 1);
+namespace PharIo\Version;
+
+class VersionConstraintValue {
+    /** @var VersionNumber */
+    private $major;
+
+    /** @var VersionNumber */
+    private $minor;
+
+    /** @var VersionNumber */
+    private $patch;
+
+    /** @var string */
+    private $label = '';
+
+    /** @var string */
+    private $buildMetaData = '';
+
+    /** @var string */
+    private $versionString = '';
+
+    public function __construct(string $versionString) {
+        $this->versionString = $versionString;
+
+        $this->parseVersion($versionString);
+    }
+
+    public function getLabel(): string {
+        return $this->label;
+    }
+
+    public function getBuildMetaData(): string {
+        return $this->buildMetaData;
+    }
+
+    public function getVersionString(): string {
+        return $this->versionString;
+    }
+
+    public function getMajor(): VersionNumber {
+        return $this->major;
+    }
+
+    public function getMinor(): VersionNumber {
+        return $this->minor;
+    }
+
+    public function getPatch(): VersionNumber {
+        return $this->patch;
+    }
+
+    private function parseVersion(string $versionString): void {
+        $this->extractBuildMetaData($versionString);
+        $this->extractLabel($versionString);
+        $this->stripPotentialVPrefix($versionString);
+
+        $versionSegments = \explode('.', $versionString);
+        $this->major     = new VersionNumber(\is_numeric($versionSegments[0]) ? (int)$versionSegments[0] : null);
+
+        $minorValue = isset($versionSegments[1]) && \is_numeric($versionSegments[1]) ? (int)$versionSegments[1] : null;
+        $patchValue = isset($versionSegments[2]) && \is_numeric($versionSegments[2]) ? (int)$versionSegments[2] : null;
+
+        $this->minor = new VersionNumber($minorValue);
+        $this->patch = new VersionNumber($patchValue);
+    }
+
+    private function extractBuildMetaData(string &$versionString): void {
+        if (\preg_match('/\+(.*)/', $versionString, $matches) === 1) {
+            $this->buildMetaData = $matches[1];
+            $versionString       = \str_replace($matches[0], '', $versionString);
+        }
+    }
+
+    private function extractLabel(string &$versionString): void {
+        if (\preg_match('/-(.*)/', $versionString, $matches) === 1) {
+            $this->label   = $matches[1];
+            $versionString = \str_replace($matches[0], '', $versionString);
+        }
+    }
+
+    private function stripPotentialVPrefix(string &$versionString): void {
+        if ($versionString[0] !== 'v') {
+            return;
+        }
+        $versionString = \substr($versionString, 1);
+    }
+}