Since I worked on a LOT of stuff here, it's quite hard for me to
separate every change I've done. Take this as one huge refactor, which
includes:
- Changing the syntax of the Vento command
- Separating Vento into three binaries: vento, take, drop
- Moving the help messages into a new file called help.rs
- Removing unnecessary format macros
- Changing expect macros to context, for better anyhow compatibility
- Updating the documentation for these changes.
