implement JS password scoring, td_stock approve logicc

lib/zxcvbn-php-master/src/Math/BinomialProvider.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZxcvbnPhp\Math;
+
+interface BinomialProvider
+{
+    /**
+     * Calculate binomial coefficient (n choose k).
+     *
+     * @param int $n
+     * @param int $k
+     * @return float
+     */
+    public function binom(int $n, int $k): float;
+}