fix opencv on xenial

src/calibration/vignette.cpp

@@ -35,7 +35,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <basalt/calibration/vignette.h>
 
-#include <opencv2/highgui.hpp>
+#include <opencv2/highgui/highgui.hpp>
 
 namespace basalt {
 

src/rs_t265_record.cpp

@@ -13,8 +13,8 @@
 #include <pangolin/image/typed_image.h>
 #include <pangolin/pangolin.h>
 
-#include <opencv2/core.hpp>
-#include <opencv2/highgui.hpp>
+#include <opencv2/core/core.hpp>
+#include <opencv2/highgui/highgui.hpp>
 
 #include <tbb/concurrent_queue.h>