cmake: fix installation of qi/translator.hpp

Change-Id: I5aa7b2b96dec7ed0960db0aa9fd5e82431c2ebed
Reviewed-on: http://gerrit.aldebaran.lan/50248
Reviewed-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>
Tested-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>
Add missing header install rules

Change-Id: Id2377bfe470c6cb04e78e78a82c3020862ee9def
Reviewed-on: http://gerrit.aldebaran.lan/50250
Reviewed-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>
Tested-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>