Add compatibility module

modules/ppcp-compat/extensions.php

@@ -0,0 +1,12 @@
+<?php
+/**
+ * The compatibility module extensions.
+ *
+ * @package WooCommerce\PayPalCommerce\Compat
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Compat;
+
+return array();

modules/ppcp-compat/module.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * The compatibility module.
+ *
+ * @package WooCommerce\PayPalCommerce\Compat
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Compat;
+
+use Dhii\Modular\Module\ModuleInterface;
+
+return static function (): ModuleInterface {
+	return new CompatModule();
+};

modules/ppcp-compat/services.php

@@ -0,0 +1,12 @@
+<?php
+/**
+ * The compatibility module services.
+ *
+ * @package WooCommerce\PayPalCommerce\Compat
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Compat;
+
+return array();

modules/ppcp-compat/src/class-compatmodule.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * The compatibility module.
+ *
+ * @package WooCommerce\PayPalCommerce\Compat
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Compat;
+
+use Dhii\Container\ServiceProvider;
+use Dhii\Modular\Module\ModuleInterface;
+use Interop\Container\ServiceProviderInterface;
+use Psr\Container\ContainerInterface;
+
+/**
+ * Class CompatModule
+ */
+class CompatModule implements ModuleInterface {
+
+	/**
+	 * Setup the compatibility module.
+	 *
+	 * @return ServiceProviderInterface
+	 */
+	public function setup(): ServiceProviderInterface {
+		return new ServiceProvider(
+			require __DIR__ . '/../services.php',
+			require __DIR__ . '/../extensions.php'
+		);
+	}
+
+	/**
+	 * Run the compatibility module.
+	 *
+	 * @param ContainerInterface|null $container The Container.
+	 */
+	public function run( ContainerInterface $container ) {
+	}
+
+	/**
+	 * Returns the key for the module.
+	 *
+	 * @return string|void
+	 */
+	public function getKey() {
+	}
+}