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/owen-it/laravel-auditing/stubs/driver.stub

@@ -0,0 +1,34 @@
+<?php
+
+namespace DummyNamespace;
+
+use OwenIt\Auditing\Contracts\Audit;
+use OwenIt\Auditing\Contracts\Auditable;
+use OwenIt\Auditing\Contracts\AuditDriver;
+
+class DummyClass implements AuditDriver
+{
+    /**
+     * Perform an audit.
+     *
+     * @param \OwenIt\Auditing\Contracts\Auditable $model
+     *
+     * @return \OwenIt\Auditing\Contracts\Audit
+     */
+    public function audit(Auditable $model): Audit
+    {
+        // TODO: Implement the audit logic
+    }
+
+    /**
+     * Remove older audits that go over the threshold.
+     *
+     * @param \OwenIt\Auditing\Contracts\Auditable $model
+     *
+     * @return bool
+     */
+    public function prune(Auditable $model): bool
+    {
+        // TODO: Implement the pruning logic
+    }
+}

docker/streamline-src/vendor/owen-it/laravel-auditing/stubs/resolver.stub

@@ -0,0 +1,14 @@
+<?php
+
+namespace DummyNamespace;
+
+use OwenIt\Auditing\Contracts\Resolver;
+use OwenIt\Auditing\Contracts\Auditable;
+
+class DummyClass implements Resolver
+{
+    public static function resolve(Auditable $auditable)
+    {
+        // TODO: Implement resolve() method.
+    }
+}