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/guzzlehttp/uri-template/README.md

@@ -0,0 +1,33 @@
+# uri-template
+
+## Install
+
+Via Composer
+
+``` bash
+$ composer require guzzlehttp/uri-template
+```
+
+## Change log
+
+Please see [CHANGELOG](CHANGELOG.md) for more information on what has changed recently.
+
+## Testing
+
+``` bash
+$ make test
+```
+
+## Security
+
+If you discover a security vulnerability within this package, please send an email to security@tidelift.com. All security vulnerabilities will be promptly addressed. Please do not disclose security-related issues publicly until a fix has been announced. Please see [Security Policy](https://github.com/guzzle/uri-template/security/policy) for more information.
+
+## License
+
+Guzzle is made available under the MIT License (MIT). Please see [License File](LICENSE) for more information.
+
+## For Enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of Guzzle and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-guzzlehttp-uri-template?utm_source=packagist-guzzlehttp-uri-template7&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)