Add DNP3 and Modbus extensions to zeeklogs.sls

Add DNP3 and Modbus extenstions to zeeklogs to ensure filebeat.yml is configured properly to ship lots.  Need to move these behind the OT flag.

setup/so-functions

@@ -3013,6 +3013,10 @@ zeek_logs_enabled() {
 			"    - weird"\
 			"    - mysql"\
 			"    - socks"\
-			"    - x509" >> "$zeeklogs_pillar"
+			"    - x509" \
+			"    - dnp3_objects" \
+			"    - modbus_detailed" \
+			"    - modbus_mask_write_single_register" \
+			"    - modbus_read_write_multiple_registers" >> "$zeeklogs_pillar"
 	fi
 }