Add concordance lists (moved from MDImporter)

src/MDConcCurrencies.php

@@ -0,0 +1,28 @@
+<?PHP
+/**
+ * Constains lists for grouping currencies.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Provides lists for categorizing spelled out currencies.
+ */
+final class MDConcCurrencies {
+
+    const CURRENCIES_LIST = [
+        "^" => "",
+        "-" => "",
+        "Forint" => "hu-Ft",
+        "DM" => "de-DM",
+        "DEM" => "de-DM",
+        "Mark" => "de-DM",
+        "EUR" => "eu-EUR",
+        "Euro" => "eu-EUR",
+        "EURO" => "eu-EUR",
+        "€" => "eu-EUR",
+        "Mark (DDR)" => "ddr-Mark",
+    ];
+
+}