[FEATURE] Utility class for conversions

Classes/SGalinski/TypoScriptReferenceFrontend/Utilities/Conversion.php

+<?php
+
+namespace SGalinski\TypoScriptReferenceFrontend\Utilities;
+
+class Conversion {
+	/**
+	 * The function converts array of attributes to associative array with form: [id => name]
+	 *
+	 * @param array $attributes
+	 * @return array
+	 */
+	public static function toAssociativeIdNamesArray(array $attributes) {
+		$idsAndNames = [];
+		foreach ($attributes as $attribute) {
+			$idsAndNames[$attribute->id] = $attribute->name;
+		}
+		return $idsAndNames;
+	}
+}
\ No newline at end of file