afanasy: afwatch plotters does not draw anything out of border
afanasy: emulate: script that launch and exit renders in a cycle
afanasy: emulate: tasks capacity parameter added, by default it is 111
afanasy: afrender: state and priority environment parameters are diraectly in af::Render class ctor, and no there is no need now to pass each parameter from main.cpp and through RenderHost.cpp