Re: [sr-dev] [kamailio/kamailio] Ipsec tcp multiple conns (#2001)

@tdimitrov I started the review yesterday as announced here, but got caught by some other urgent topic. This is a quite large patch in the end. There was no need to rush this into the repository.

There exists many white-space issues where the code uses a complete different indention as the existing code (e.g. ims_ipsec_pcscf_mod.c). There are also several commented out code blocks which should be probably removed as well (src/modules/ims_ipsec_pcscf/ipsec.c). I will have a look to fix the most noticeable cases.

If you like to merge a big patch like this in the future, please spend some time to review the code to catch this obvious issues before.