add passingSpikes table to the dataset types

alyx/data/fixtures/data.datasettype.json

@@ -2286,5 +2286,16 @@
       "description": "Bad channel detection outcome, 0 is good, 1 corresponds to dead or low amplitude channels, 2 corresponds to noisy channels, 3 corresponds to channels labeled as outside of the brain.",
       "filename_pattern": ""
     }
+  },
+  {
+    "model": "data.datasettype",
+    "pk": "2a0f78ff-bcc3-4780-8b00-0cb1280850aa",
+    "fields": {
+      "json": null,
+      "name": "passingSpikes.table",
+      "created_by": null,
+      "description": "A compressed table containing only the spikes belonging to passing units, to accelarate data loading",
+      "filename_pattern": "*passingspikes.table*"
+    }
   }
 ]