Handle atom inputs

[lustrousgorilla]

What do you think about also handling atom inputs? I'm happy to make a PR to implement this enhancement if you're on board.

[sobolevn]

You mean recasing atoms?

Recase.to_pascal(:"some-value") == :"SomeCase"

Why do you need it?

[lustrousgorilla]

I can think of a few use cases, but my immediate use case is generating select options in a Phoenix view helper. I need to map over a bunch of atoms to turn each value like :some_atom into a label string "Some Atom".

[sobolevn]

Can you do it this way:

1. atom -> string
2. string snake -> string other case

?