Add stop to findBestMsRun

src/gui/edit/edit_alignment_param/masschroqparam.cpp

.../export/export_masschroq_dialog/exportmasschroqdialog.cpp

src/gui/mainwindow.cpp

src/gui/mainwindow.h

src/gui/waiting_message_dialog/waitingmessagedialog.cpp

src/gui/waiting_message_dialog/waitingmessagedialog.h

src/gui/workerthread.cpp

src/gui/workerthread.h

src/main.cpp

src/resources/model/QExactive_analysis_FDR_nosemi.xml

src/utils/workmonitor.cpp

src/utils/workmonitor.h