* CameraImages: support reading multicamera image and calibration files
* Added multi camera support for CameraStereoImages. Refactored single calib per frame option.
* refactored
* refactor
* bump 0.23.8
* Added CameraStereoZedOC (Zed Open Capture driver). Calibration: added stereo baseline option, show warning if fx is very different after stereo calibration.
* Fixed build without Zed Open Capture. Fixed "any" prefix added to all tools when WITH_ZEDOC=ON. UI: fixed Zed Open Capture action not disabled when not built with it.
CameraRealSense2: added new warnings to debug easier timestamps problems.
GUI: added gravity visualization.
DbViewer: empty clouds in OctoMap mode have color depending on probability of occupancy.
Brought general changes from local xvision branch.
* Saving full camera calibration in database, added angle min/max/inc to LaserScan.
* Updated laserscan info save/load in db
* Database: added Tag table, added env_sensors field to Node
* fixed serialization/deserialization of stereo camera model
* fixed multi-calibration db saving
* fixed rebase errors
* Tango: Added saving environmental sensors option
* Memory: Save env sensors
* Tango: fixed env sensor ids
* DBViewer: show env sensors values
* DBViewer: added calibration details on tooltip
* increased package version to 0.18.0
* Fixed LaserScan copies when angleIncrement is valid
* fixed build error without OctoMap dependency
-CreateSimpleCalibrationDialog updated to create mono/stereo calibration files with advanced option (setting intrinsics of each camera + extrinsics between them). Rectification R and new camera P matrices are then automatically computed.
-Added GeodeticCoords class for convience conversion between GPS values (latitude/longitude/altitude) to local coordinate (ENU).
-Added support of Malaga Urban and St Lucia ground truths.
-CameraImages: added option to debayer images. Timestamps file: added support of "sec millisec" format.
-Added UException class: exceptions are sent instead of exiting the application on UASSERT or UFATAL.
SensorData can support laser scans CV_32FC6 format (point cloud with normals). Refactored RegistrationICP and updated CloudViewer to show PointNormal data.
Fixed bug with stereo clouds deterioration if decimation is set (CameraModel::scale()).