Warnings vs ValueErrors with user provided params

[VeckoTheGecko]

We have some warnings along the lines of

https://github.com/OceanParcels/Parcels/blob/5fff42c2ea4cc12d03df8c936dd391e251658c8f/parcels/field.py#L232-L238

Thoughts on just raising a ValueError instead? Its incorrect usage of the API, and I think explicitly failing would be nicer than implicitly working under different settings

[VeckoTheGecko]

I don't think its a major thing either way. Perhaps worth it only for v4

[erikvansebille]

Yes, good point that a ValueError would be more appropriate and cleaner here; the code then also don't need to implicitly decide that time_periodic is a more important setting than allow_time_interpolation