abbreviation-trait vs error-tree vs variant-builder-macro

This crate provides the Abbreviation and TryFromAbbreviation traits, common in the north-america, europe, south-america, etc crates

This crate let's us use the `error_tree!` proc macro for ergonomic error hierarchy definition

This crate gives us the VariantBuider proc macro which can be used to streamline creting an enum from wrapping variants each using the builder pattern.