Support representing arrays as F# lists

[adamjones1]

At the moment OpenApi arrays are represented as .Net arrays in the generated types. Is there any chance there could be a flag added to optionally use F# lists instead? Obviously arrays are best for C# interop but if you're only consuming from F# then lists have the benefits of being non-nullable, immutable, O(1)-append etc. Generally they're more idiomatic in F# so if your client app uses lists ubiquitously for collections then you don't have to add glue code around the generated types to convert back and forth all the time.

[xperiandri]

Or as ImmutableArray