char identity

[dzmitry-lahoda]

emojis are very versatile now in unicode - may be there is patter for meta identity?

[andrewlock]

I'm very late to this, but the big redesign of the library in this PR is intended to make it easier to add any features you require:

• Fundamental redesign to allow complete customisation #117

The main idea is to make the library much more maintainable while also giving people a mechanism to customise the generated IDs as much as they like. This should make it easy for you to use features like this.