position_from_velocity in parallel so that it integrates from the starting lat/lon position of each trajectory?

[selipot]

How would you use position_from_velocity in parallel so that it integrates from the starting lat/lon position of each trajectory? This would imply passing x_origin and y_origin of size rowsize but right now the function only accepts floats ... That's a ragged array problem for clouddrift! @kevinsantana11

Originally posted by @selipot in #180 (comment)

[philippemiron]

I see the problem now. And I think we already discussed this at one point...

The idea would be to add the possibility of passing a special *arg and **kwarg that would be a list of len(rowsize). That way we could pass different arguments for each trajectory.