Support for float64 and int32 in GriddedSamples

[veenstrajelmer]

Is your feature request related to a problem? Please describe.
Support for int16 and float32 in GriddedSamples was implemented in meshkernel 4.0.0. This is great, but since it works so nicely (without the user having to provide any hardcoded dtype), it might be nice to also support int32 and float64. This would make it even more flexible. The user than has to be aware that memory usage is higher with "higher" dtypes, but this is fair to assume.

Describe the solution you'd like
Support for int32 and float64 in GriddedSamples