[SR-Dev] TLS merge

Hello, If we want to make the sip-router core usable in both projects, we would also need to merge both tls implementations. In SER we moved the the TLS implementation into tls module. In Kamailio it appears that the tls implementation is in tls subdirectory in the core and then there is tlsops module which contains pseudovariables used to retrieve information from TLS certificates. Unless somebody has a better idea, I would propose that we merge the tls implementation from kamailio core into ser tls module. In addition to that we could merge the implementation of tls related pseudovariables from tlsops into the tls module and then put the tls module into the sip-router repository. What do you think? I volunteer to do this if nobody objects. Jan.