Macro project 

macro_rules! project {
    ($name:literal) => { ... };
    ($v:ident: $name:literal) => { ... };
    ($v:ident: $name:expr => $banner:expr) => { ... };
}

Create a new project information constant.

This will define a new constant, including the name of the project as well as the version from the cargo file.

It is intended to be present once in a central module of your project, possibly in combination with [runtime!].