🚀[FEA]: Improve messaging for missing scaling values, warnings for NaNs and out of range values in Healpix Dataloaders

[daviddpruitt]

Is this a new feature, an improvement, or a change to existing functionality?

Improvement

How would you describe the priority of this feature request

Low (would be nice)

Please provide a clear description of problem you would like to solve.

Healpix dataloaders will fail when scaling values are missing, messages conveying the reason for the failure and what scaling values are needed
Healpix dataloaders don't check for NaNs or out of scale values when loading data. This causes issues when training and bad data is in the dataset

Describe any alternatives you have considered

No response