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/cache/UPGRADE-1.11.md

@@ -0,0 +1,27 @@
+# Upgrade to 1.11
+
+doctrine/cache will no longer be maintained and all cache implementations have
+been marked as deprecated. These implementations will be removed in 2.0, which
+will only contain interfaces to provide a lightweight package for backward
+compatibility.
+
+There are two new classes to use in the `Doctrine\Common\Cache\Psr6` namespace:
+* The `CacheAdapter` class allows using any Doctrine Cache as PSR-6 cache. This
+  is useful to provide a forward compatibility layer in libraries that accept
+  Doctrine cache implementations and switch to PSR-6.
+* The `DoctrineProvider` class allows using any PSR-6 cache as Doctrine cache.
+  This implementation is designed for libraries that leak the cache and want to
+  switch to allowing PSR-6 implementations. This class is design to be used
+  during the transition phase of sunsetting doctrine/cache support.
+
+A full example to setup a filesystem based PSR-6 cache with symfony/cache
+using the `DoctrineProvider` to convert back to Doctrine's `Cache` interface:
+
+```php
+use Doctrine\Common\Cache\Psr6\DoctrineProvider;
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+
+$cachePool = new FilesystemAdapter();
+$cache = DoctrineProvider::wrap($cachePool);
+// $cache instanceof \Doctrine\Common\Cache\Cache
+```