api: add accountId to identify calls, conferences

src/api/avmodel.h

src/api/lrc.h

src/api/newcallmodel.h

src/avmodel.cpp

src/callbackshandler.cpp

src/callbackshandler.h

src/conversationmodel.cpp

src/lrc.cpp

src/newcallmodel.cpp

src/qtwrapper/callmanager_wrap.h

src/qtwrapper/configurationmanager_wrap.h

src/qtwrapper/videomanager_wrap.h