latest, d2s stuff

src/D2ByteReader.php

@@ -64,10 +64,21 @@ class D2ByteReader {
             $this->data[$pos] = pack('H*', $byte);
         }
     }
+    public function insertBytes(int $offset, string $bytes) {
+        if ($offset < 0 || $offset > strlen($this->data) || $bytes == '')
+            return false;
+        $data = bin2hex($this->data); // convert to hex bytes string
+        $newData = substr_replace($data, $bytes, $offset, 0);
+        $this->data = hex2bin($newData);
+    }    
 
     public function getData() {
         return $this->data ? $this->data : false;
     }
+    
+    public function setData($data){
+        $this->data = $data;
+    }
 
     public function getOffset(): int {
         return $this->offset;