Set security password.

 | Data byte | Description                                                        |
 | :---------: | -----------                                                      |
 | 0         |	Optional byte that have a meaning given by the issuer of the event.| 
 | 1         | Zone for which event applies to (0-255). 255 is all zones.         |
 | 2         | Sub-zone for which event applies to (0-255). 255 is all sub-zones. |
 | 3-7 | Security password. This password can be 1-5 bytes and length of event is set accordingly. It should be interpreted as an UTF-8 string with a length set bt event data length - 3 |
 
