add nearest neighbours detection
add libopencv_flann dep.
add trackbars, brute force NN search/drop flann, dynamic movement radius, OpenMP
script to comment ueye support
refactor (Capt class)
trail class: GC, Kalman filter
trail: dump, toV2f returns pair, stalling detection, list<Trail> for NN domain; basic event separation
predictor works, NN matches also radius, assigning IDs to objects, Trail tracks radius + frameIDs, minor fixes
fix isOld, isWeak add isShort, add getPredictionLen, fix matching condition