Way to get tuple members in snake case form.

[IamTheCarl]

Great library, saves me a ton of time and effort.
I'm using it to create an ECS framework for retro consoles.

I've ran into situations where I need to generate variables referencing each member of the tuple. For now I just use a crate called casey to convert the member names to lowercase: https://github.com/IamTheCarl/micro_ecs/blob/master/src/storage/tuples.rs#L33

This problem can be worked around by storing all the values in a tuple (and I've done this in situations where casey doesn't work) but I feel individually named variables are more readable when expanding output using cargo expand.

I think the convenience of this crate could be improved by adding two more meta variables.

• #member0
  • The member name but in lower case.
• #_member0
  • The member name but in lower case and starting with an underscore.