itemizer 1.0.3

Containing an itemizer to itemize structs
Documentation 
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# Itemizer

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)

**Itemizer** is a data structure that maps items to unique integer IDs. It is used to convert items into unique IDs, and back again.

The Itemizer is generic over the type of the item, so it can be used with any type that implements the Eq, Hash, Ord, and Clone traits.

When calling `id_of` on an itemizer, it assigns an index, wrapped in an `Item` struct which represents this value. Using `value_of`, the original value can be retrieved.


# Example
```rust

let mut itemizer = Itemizer::new();
let item1 = itemizer.id_of(&"item1".to_string());
let item2 = itemizer.id_of(&"item2".to_string());

assert_eq!(itemizer.value_of(&item1), &"item1".to_string());
assert_eq!(itemizer.value_of(&item2), &"item2".to_string());

```