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/nikic/php-parser/lib/PhpParser/NodeTraverserInterface.php

@@ -1,26 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace PhpParser;
-
-interface NodeTraverserInterface {
-    /**
-     * Adds a visitor.
-     *
-     * @param NodeVisitor $visitor Visitor to add
-     */
-    public function addVisitor(NodeVisitor $visitor): void;
-
-    /**
-     * Removes an added visitor.
-     */
-    public function removeVisitor(NodeVisitor $visitor): void;
-
-    /**
-     * Traverses an array of nodes using the registered visitors.
-     *
-     * @param Node[] $nodes Array of nodes
-     *
-     * @return Node[] Traversed array of nodes
-     */
-    public function traverse(array $nodes): array;
-}