Libby

Add functions: `str_to_pascal()`, `str_to_camel()`, `str_to_kebab()`, `str_to_snake()`

1

Added 4 functions for common programming use. Closes #573 . All functions call an existing `str_to_*()` so locale argument respects the behavior of those functions Aliases `StrToPascal()` and `strToCamel()` exist...