Edit logs

[sdaugherty]

Add a change history tab, which summarizes all changes made anywhere within a character sheet in a single place, and possibly allows for comments to be added for the changes.

This would make auditing character sheets infinitely easier for DMs, even if there is a limited period of time these are kept.

[ThaumRystra]

This is something I've always wanted for DiceCloud, and it's definitely on the wish-list, but I wouldn't want to implement on top of the current way of doing things, with mutations being sent straight from the client code, because it will be impossible to maintain.

When I move the mutations to validated methods, I'll definitely include general purpose logging of all changes made to a character.