hashAnything should also hash circular structures

[jesobreira]

Since the lib claims to be able to "Hash any Javascript primitive or object", from my point of view, circular structures should also be supported.

Instead, it throws a "Maximum call stack size exceeded" error...

Example code:

var hashAnything = require("hash-anything")
let circular = { "foo": "bar" }
circular.myself = circular
hashAnything.md5(circular)

Tip: flatted should be used to stringify circular structures

[ben-page]

Thanks for the feedback. Feel free to create a PR for this. However, flatted wont help. hash-anything does not stringify the object before hashing.