KD-tree classes and adaptors

Classes
class	nanoflann::KDTreeSingleIndexAdaptor< Distance, DatasetAdaptor, DIM, index_t >
class	nanoflann::KDTreeSingleIndexDynamicAdaptor_< Distance, DatasetAdaptor, DIM, IndexType >
class	nanoflann::KDTreeSingleIndexDynamicAdaptor< Distance, DatasetAdaptor, DIM, IndexType >
struct	nanoflann::KDTreeEigenMatrixAdaptor< MatrixType, DIM, Distance, row_major >

Detailed Description