* tport: new tag TPTAG_TLS_VERIFY_PEER

  With this tag, the verification of certificates can be controlled:
  0: no verify certificates.
  1: on server mode, the certificate returned by client is checked and
     if fail the TLS/SSL handshake is immediately terminated.
  1: on client mode, the server certificate is verified and
     if fail the TLS/SSL handshake is immediately terminated.

  I added this tag, because I'd like that my application not connected to a
  server with a untrusted certificate.



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10824 d0543943-73ff-0310-b7d9-9358b9ac24b2