reasons: on zap showIcon_CA_Status was called at least 5! times, including full cabar paint,
while channel camap changed only once, so should be enough to paint bar once, paint grey icons if zap not complete,
and paint icons on event from zapit;
thread only to speedup resolution display for some 0.5-1 seconds sounds redundant.
feel free to discuss in mail-list
- add new class 'CInfoViewerBB' (infoviewer_bb.cpp)
- rework paint and calculate icons
- unused icons in the radio mode will not be displayed
- activate 'show resolution = off' in osd setup
- insert 'Display active tuner' in osd setup
