Fix Processlib Link/SinkTask::setEventCallback
This patch includes merge request LimaGroup/Processlib!1, which should be accepted before this one.
There is also an attempt to an easier code readability in CtControl::_increment_image_cnt
This patch includes merge request LimaGroup/Processlib!1, which should be accepted before this one.
There is also an attempt to an easier code readability in CtControl::_increment_image_cnt