Set security pin.

 | 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 pin. This pin can be 1-5 bytes and length of event is set accordingly. It should be interpreted as an unsigned integer in the range 0-1099511627775. MSB byte is stored in first byte. |
 
