Adding OpenCV's GPU GFTT/ OpticalFlow and CudaSift support (#1330)

* Adding GFTT and SIFT Cuda support

* Working CudaSift

* Disable cudasift option when not available

* Added check to avoid re-allocating gpu memory everytime parseParameters is called. Added workaround of to detect/ignore invalid descriptors

* Added SIFT/PreciseUpscale and SIFT/Upscale parameters. Adjusted max octave to behave more like opencv

* Refactored how maximum features are thresholded, to be more similar to OpenCV version

* Updated loop closure benchmark scripts

* Cuda optical flow tmp commit

* Added Stereo/Gpu Vis/CorFlowGpu parameters (optical flow gpu integration for F2F odom and stereo correspondences)

* Fixed build without opencv cuda

* Fixed build with Opencv 4.10

* ZED: updated parameters to match zed sdk 4

* MRPT requires C++17

* updated max octave limit CudaSift

examples/WifiMapping/MapBuilder.h

@@ -156,6 +156,7 @@ protected Q_SLOTS:
 			}
 		}
 		cloudViewer_->update();
+		cloudViewer_->refreshView();
 
 		lastOdometryProcessed_ = true;
 	}
@@ -245,6 +246,7 @@ protected Q_SLOTS:
 		odometryCorrection_ = stats.mapCorrection();
 
 		cloudViewer_->update();
+		cloudViewer_->refreshView();
 
 		processingStatistics_ = false;
 	}