Tracking modes

The tracker supports several odometry modes — see cuvslam::Odometry::OdometryMode for the enum and per-mode requirements. Multisensor accepts at least one RGB-D camera or one overlapping camera pair, with an optional IMU, and requires a cuNLS-enabled build. It is configured through cuvslam::Odometry::MultisensorSettings. A high-level mode chooser table lives in the top-level README's "Tracking modes" section.

For saving maps and relocalizing with LocalizeInMap, see load_map.md.