fix: require higher confidence in robust matching ransac
fix: require higher confidence in robust matching ransac

sunbingfengPI/OpenSFM_Test,mapillary/OpenSfM,mapillary/OpenSfM,mapillary/OpenSfM,sunbingfengPI/OpenSFM_Test,mapillary/OpenSfM,oscarlorentzon/OpenSfM,oscarlorentzon/OpenSfM,sunbingfengPI/OpenSFM_Test,sunbingfengPI/OpenSFM_Test,oscarlorentzon/OpenSfM,oscarlorentzon/OpenSfM,mapillary/OpenSfM,oscarlorentzon/OpenSfM,sunbingfengPI/OpenSFM_Test