add base91 support

tests/operations/tests/Base91.mjs

@@ -0,0 +1,22 @@
+/**
+ * Base64 tests.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "From Base91: First",
+        input: "lM_1Z<jNG",
+        expectedOutput: "idevlab",
+        recipeConfig: [
+            {
+                op: "From Base64"
+            },
+        ],
+    },
+]);