SVGHMI: Fixed typo on session manager unregister, leading to wrong count of sessions and then exceptions when creating more session than allowed in protocol options. Also added more safety check in protocol in case session would be missing.
#Encoding of BACnet Object Types;;;
#Code;Object Type;;
0;Analog Input;;
1;Analog Output;;
2;Analog Value;;
3;Binary Input ;;
4;Binary Output;;
5;Binary Value;;
6;Calendar;;
7;Command;;
8;Device;;
9;Event-Enrollment;;
10;File;;
11;Group;;
12;Loop;;
13;Multistate Input;;
14;Multistate Output
15;Notification Class
16;Program
17;Schedule
18;Averaging
19;Multistate Value
20;Trend Log
21;Life Safety Point
22;Life Safety Zone
23;Accumulator
24;Pulse Converter