Make use of yield in __iter__

sampy/raknet/bitstream.py

@@ -167,15 +167,8 @@ class Bitstream:
         return self
 
     def __iter__(self) -> Bitstream:
-        self._iter_index = 0
-        return self
-
-    def __next__(self) -> bool:
-        if self._iter_index >= self._bit_length:
-            raise StopIteration
-        bit = self[self._iter_index]
-        self._iter_index += 1
-        return bit
+        for i in range(len(self)):
+            yield self[i]
 
     def __repr__(self) -> str:
         return "<Bitstream addr:0x%012x offset:%d len:%d data:'%s'>" % (