OSB-28: add log table

.gitattributes

@@ -1808,6 +1808,7 @@ LCU/Maintenance/DBInterface/monitoringdb/models/element.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/element_error.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/error_details.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/fixed_types.py -text
+LCU/Maintenance/DBInterface/monitoringdb/models/log.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/rtsm.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/station.py -text
 LCU/Maintenance/DBInterface/monitoringdb/models/station_test.py -text

LCU/Maintenance/DBInterface/monitoringdb/models/log.py

+import django.db.models as models
+
+
+class ActionLog(models.Model):
+    entry_id = models.IntegerField()
+    model_name = models.CharField(len=100)
+    who = models.CharField(len=100)
+    when = models.DateTimeField(auto_now_add=True)
+    what = models.CharField(len=1000)