added isAddress locale

Author: serderovsh

examples/contract.php

@@ -18,7 +18,6 @@
     $tron = new Tron($fullNode, $solidityNode, $eventServer, null, true);
     $contract = $tron->contract('TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t');  // Tether USDT https://tronscan.org/#/token20/TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t
 
-
     // Data
     echo $contract->name();
     echo $contract->symbol();