func NewExhaustiveNNer(xs [][]float64) ANNer {
	return &exhaustive{xs: xs}
}
NewExhaustiveNNer creates a new ANNer that uses exhaustive search
Obviously you should use this for all your performance sensitive tasks
package ann
import (
	mat "github.com/gonum/matrix/mat64"
	"github.com/rikonor/go-ann/ksmall"
)
type exhaustive struct {
	xs [][]float64
}