descriptor 0.0.4

A simple to use struct descriptor
Documentation 
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# Simple Struct Descriptor

[![Crates.io](https://img.shields.io/crates/v/descriptor?style=flat-square)](https://crates.io/crates/descriptor)
[![Crates.io](https://img.shields.io/crates/d/descriptor?style=flat-square)](https://crates.io/crates/descriptor)
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Easy pretty print your Rust struct into single element or table

## Example

```rust
use descriptor::{object_describe_to_string, table_describe_to_string, Descriptor};

#[derive(Descriptor)]
struct User {
    name: String,
    age: i32,
    address: Address,
}

#[derive(Descriptor)]
struct Address {
    street: String,
    town: String,
}

fn main() {
    let user1 = User {
        name: "Adrien".to_string(),
        age: 32,
        address: Address {
            street: "Main street".to_string(),
            town: "NY".to_string()
        }
    };
    let user2 = User {
        name: "Corentin".to_string(),
        age: 40,
        address: Address {
            street: "10 rue de la paix".to_string(),
            town: "Paris".to_string()
        }
    };
    let description = object_describe_to_string(&user1).unwrap();

    assert_eq!(r#"
     Name:    Adrien
     Age:     32
     Address:
       Street: Main street
       Town:   NY
     "#, description);

    let table = table_describe_to_string(&vec![user1, user2]).unwrap();

    assert_eq!(r#"
     NAME     AGE ADDRESS.STREET    ADDRESS.TOWN
     Adrien   32  Main street       NY
     Corentin 40  10 rue de la paix Paris
     "#, format!("\n{}", table));
}
```