Add an option to force all/specific fields to lowercase in datasets

[#1]

Description - It would be wonderful to have a feature to force all/specific fields to lowercase in datasets (similar to CJA component settings)

Why is this feature important to you - When adding lookup datasets to CJA, if there's variance in casing the metadata isn't returned, even if the dimension is displayed in all lowercase.

How would you like the feature to work - Radio button to force all fields to lowercase.  Checkboxes to allow only specific fields to be forced to lowercase.

Current Behaviour - Can use data prep to lower case specific fields.  But that's not retroactive and only applies to one field at a time.