IOTA Identity - Diff

This module implements a Diff trait. This gives data structures the ability to compare themselves to another data structure of the same type over time. The library pairs off with [identity_diff_derive], which implements a derive macro for the Diff Trait.

Types supported include HashMap, Option, String, serde_json::Value, Vec and primitives such as i8/u8 up to usize and isize, as well as the unit type (), bool, and char types. Structs and Enums are supported via [identity_diff_derive] and can be composed of any number of these types.