Add depreciation types

Business/Finance/DepreciationType.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   phpOMS\Business\Finance
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);
+
+namespace phpOMS\Business\Finance;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Depreciation type enum.
+ *
+ * @package phpOMS\Business\Finance
+ * @license OMS License 2.0
+ * @link    https://jingga.app
+ * @since   1.0.0
+ */
+abstract class DepreciationType extends Enum
+{
+    public const STAIGHT_LINE = 1;
+
+    public const DECLINING_BALANCE = 2;
+
+    public const SUM_OF_THE_YEAR = 3;
+
+    public const UNITS_OF_PRODUCTION = 4;
+}