start work on results buffers

src/Solver/Mage.py

@@ -1106,6 +1106,10 @@ class Mage8(Mage):
                         r.set(i, t, "V", v)
             logger.info(f"read_bin: ... end with {len(ts)} timestamp read")
 
+        results.bufferize("Z")
+        results.bufferize("Q")
+        results.bufferize("V")
+
     @timer
     def read_gra(self, study, repertory, results, qlog=None, name="0"):
         if not study.river.has_sediment():