This function reverses the order of the points in an object of class `trajectory` and then constructs a new trajectory using the reversed points. The function assumes the existence of a `trajectory` function that creates a trajectory from the given x and y coordinates, as well as a time step `delta_time`.
reverseTrajectory(obj)A new trajectory object created using the reversed points and the original `delta_time` from `obj`.
An object of class `trajectory` that contains a component `points`, which is a matrix or data frame with the coordinates of the points. It is assumed that `points` has columns `x` and `y` representing the coordinates of the points in the trajectory.