IOService: expose peer certificate object
IOService: expose peer certificate object

Signed-off-by: Daniele Ricci <08360db1a9d16422a67edfa3456e0fbc2c91e6e3@gmail.com>

cgvarela/tigase-server,cgvarela/tigase-server,cgvarela/tigase-server,cgvarela/tigase-server,cgvarela/tigase-server,cgvarela/tigase-server