added include functionality and update endpoint to resource controller

lib/Traits/ApiObjectController.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace OCA\OrganizationFolders\Traits;
+
+trait ApiObjectController {
+	public const MODEL_INCLUDE = 'model';
+
+	/**
+	 * @param string $include
+	 *
+	 * @return array
+	 */
+	public function parseIncludesString(?string $include): array {
+		if (isset($include)) {
+			$includes = array_filter(explode('+', $include));
+
+			if (!!$includes) {
+				return $includes;
+			}
+		}
+
+		return [self::MODEL_INCLUDE];
+	}
+
+    /**
+	 * @param string $test
+	 * @param array $includes
+	 *
+	 * @return boolean
+	 */
+	public function shouldInclude(string $test, array $includes): bool {
+		return in_array($test, $includes);
+	}
+}