- Move most of the stuff for backwards compatibility support into one class

- Added random port logic
- Updated wait wtrategies
- API alignments to make it similar to other official implementations
- ...

src/Utils/PortGenerator/FixedPortGenerator.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Testcontainers\Utils\PortGenerator;
+
+class FixedPortGenerator implements PortGenerator
+{
+    protected int $portIndex = 0;
+
+    public function __construct(
+        /** @var int[] */
+        protected array $ports
+    ) {
+    }
+
+    public function generatePort(): int
+    {
+        if (!isset($this->ports[$this->portIndex])) {
+            throw new \RuntimeException('No more ports available in the fixed list.');
+        }
+
+        return $this->ports[$this->portIndex++];
+    }
+}