* Make it work in bookworm, redid some of the changes from last commit

* Changed default number types to int16 for ADC_Result and float32 for
  Accumulations

tests/res_test.py

@@ -1,6 +1,9 @@
 def result():
+    accu = Accumulation(error=False)
     for num,ts in enumerate(results):
+        data["accu"] = accu
         data["ts %i"%num] = ts+0
         data["fft"] = (ts+0).fft()
         data["ppm"] = (ts+0).fft().ppm(300e6)
+        accu+=ts
         #print ts