feat(snowflake): add matlab query code (#15630)

data-storage/snowflake/read-snowflake-by-matlab/main.m

@@ -0,0 +1,17 @@
+conn = database('archer-snowflake', 'production_tracker_db_public_readonly', 'xxx')
+
+fieldNames = {'record_metadata', 'record_content'};
+
+columnNames = strjoin(fieldNames, ', ');
+sqlQuery = [
+            'select ', columnNames, ' ', ...
+            'from production_tracker_db.public.analytic_events'
+           ];
+data = fetch(conn, sqlQuery);
+
+close(conn);
+
+clear columnNames;
+clear conn;
+clear fieldNames;
+clear sqlQuery;