- 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/Container/StoppedTestContainer.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Testcontainers\Container;
+
+interface StoppedTestContainer
+{
+    public function getId(): string;
+}