Don't send data from before start time to ev44 and don't write any data after stop time for all schemas

Data before start time is not relevant for ev44. No data is written after the stop time for all schemas

integration-tests/test_filewriter.py

@@ -379,7 +379,7 @@ class TestFileWriter:
 
         with h5py.File(os.path.join(OUTPUT_DIR, file_name), "r") as f:
             # Check data is as expected
-            assert len(f["/entry/detector/event_time_zero"]) == 8
+            assert len(f["/entry/detector/event_time_zero"]) == 7
             assert f["/entry/detector/event_id"][0] == 15
             assert f["/entry/detector/event_id"][~0] == 54
             assert len(f["/entry/motion/time"]) == 8