Add RANN package and wrapper function for running approx knn regression with the kdtree method (kd-tree in FNN package seemed artificially fast). RANN package mantained by authors of kd-tree method.
Add RANN package and wrapper function for running approx knn regression with the kdtree method (kd-tree in FNN package seemed artificially fast). RANN package mantained by authors of kd-tree method.

Push this into simulation time tests

kmaurer/iqnnProject,kmaurer/IQbinR