Converted enum values to upper case and removed Switch suffix from …

[DavidSagan]

…switch group names.

[mattsignorelli]

@DavidSagan something I've been meaning to point out to you was EnumX.jl. It might be a better solution (has many better features and scopes are properly handled, tab completion, etc). I saw somewhere once that this is the default in the SciML ecosystem but don't quote me on that