fixes device mapping in location_interpolation.py

[vkazei]

No description provided.

[ar4]

Hi Vladimir,

Thank you for this. The released version seems to use the location Tensor's device when the interpolator was created as the device for the weight Tensor, and then assumes that the device will be the same when the receiver method is called. I agree with you that adding a call to move it if necessary in the receiver method is a good idea.

I hope to do a large update of Deepwave around the end of the year, so I'll wait until then before making a new release that incorporates your change, if that is alright with you.