variantly 0.2.0

Derive helper methods for enum variants that are familiar from `std::option::Option` & `std::result::Result` such as `unwrap_or` or `and_then`.
Documentation 
# Generated by Cargo
# will have compiled files and executables
/target/
src/variantly_derive/target/
scratch/*

# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
Cargo.lock

# These are backup files generated by rustfmt
**/*.rs.bk


# Added by cargo

/target