calib3d(usac): do not crash on empty models * calib3d(test): regression test for issue 19639 * calib3d(usac): do not crash in setModelParameters() * calib3d(usac): handle empty models in isModelGood()
[GSoC] New RANSAC. Homography part * change enum and squash commits * add small improvements * change function to static, update magsac * remove path from samples, remove license, small updates * update pnp solver, small improvements * fix warnings * add tutorial, comments * fix markdown warnings * fix markdown warnings * fix markdown warnings