Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/psr/clock/README.md

@@ -1,61 +0,0 @@
-# PSR Clock
-
-This repository holds the interface for [PSR-20][psr-url].
-
-Note that this is not a clock of its own. It is merely an interface that
-describes a clock. See the specification for more details.
-
-## Installation
-
-```bash
-composer require psr/clock
-```
-
-## Usage
-
-If you need a clock, you can use the interface like this:
-
-```php
-<?php
-
-use Psr\Clock\ClockInterface;
-
-class Foo
-{
-    private ClockInterface $clock;
-
-    public function __construct(ClockInterface $clock)
-    {
-        $this->clock = $clock;
-    }
-
-    public function doSomething()
-    {
-        /** @var DateTimeImmutable $currentDateAndTime */
-        $currentDateAndTime = $this->clock->now();
-        // do something useful with that information
-    }
-}
-```
-
-You can then pick one of the [implementations][implementation-url] of the interface to get a clock.
-
-If you want to implement the interface, you can require this package and
-implement `Psr\Clock\ClockInterface` in your code. 
-
-Don't forget to add `psr/clock-implementation` to your `composer.json`s `provides`-section like this:
-
-```json
-{
-  "provides": {
-    "psr/clock-implementation": "1.0"
-  }
-}
-```
-
-And please read the [specification text][specification-url] for details on the interface.
-
-[psr-url]: https://www.php-fig.org/psr/psr-20
-[package-url]: https://packagist.org/packages/psr/clock
-[implementation-url]: https://packagist.org/providers/psr/clock-implementation
-[specification-url]: https://github.com/php-fig/fig-standards/blob/master/proposed/clock.md