[sr-dev] [kamailio/kamailio] Do not start Kamailio if no listener address is configured (#1098)

[Sarbyn]

### Description

During some test on my server I forgot to configure a valid listen network address. It's my fault but Kamailio crashed with a useless message:

> kamailio[4739]: segfault at 0 ip 00007f022ede5e71 sp 00007fff94033f08 error 4 in libc-2.17.so[7f022ec82000+1b6000

I think it's better to abort the startup if no listen address is specified and with an explicit error message, instead of produce a segfault and a crash without any error


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https://github.com/kamailio/kamailio/issues/1098
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