Update const.py

Author: bigbes

tarantool/const.py

@@ -65,6 +65,8 @@
 ITERATOR_BITSET_ALL_SET = 7
 ITERATOR_BITSET_ANY_SET = 8
 ITERATOR_BITSET_ALL_NOT_SET = 9
+ITERATOR_OVERLAPS = 10
+ITERATOR_NEIGHBOR = 11
 
 # Default value for socket timeout (seconds)
 SOCKET_TIMEOUT = None