Support usernames in tokens

[Olivia5k]

I've been enjoying the custom to sign your TODO items with your username, e.g.;

TODO(thiderman): Fix the foobar and the bizbaz

Setting the magit-todos-require-colon setting to nil makes the code find tokens, but it seems that it cannot read the contents and just prints the tokens;

That last one is the only one that doesn't have a username (I have a yas snippet that expands with my username, so I rarely forget it).

I understand that this is an edge case and not how most projects does it. However, if it is not too much of a bother to add support of these kinds of tokens, I'd be the happiest camper! This is a lovely project, but it simply doesn't work for almost anything I work on, both professionally and during my spare time.

Cheers! 🎉

[alphapapa]

I think we can do this by changing the require-colon setting to a keyword-suffix setting, which could be nil to match items like those. I'll add this when I get a chance. Thanks for suggesting.

[alphapapa]

@thiderman I think that should do it, and the default should work for you. Please let me know if it does!

[Olivia5k]

@alphapapa Works flawlessly! Thank you so much! 😍

[alphapapa]

Great! By the way, I'd like to show this feature in a screenshot, but I don't think I have any repos that have items like that. If you are interested, would you take a screenshot of a magit-status buffer showing items like those that I could add to the readme? It would need to be a PNG, and about the same size as the others, 747 pixels wide and around 650 pixels tall.

[Olivia5k]

Absolutely!

Is that good? 💃

[alphapapa]

Perfect, thank you very much!

[alphapapa]

@thiderman I just added support for grouping/sorting by suffixes in f97afdc. So if you sort first by suffix, items will be grouped by username. Let me know what you think. :)