Add string-inflection

[anonymni]

https://github.com/akicho8/string-inflection

[a13ph]

There are also some alternative implementations of it, around 5 in total, I think

[anonymni]

Yeah. We should discuss how to add this feature to Spacemacs to make editing more convenient. I'd love to hear thoughts.

[d12frosted]

Whatever implementation you chose, please don't follow this madness:

(global-unset-key (kbd "C-q"))

[rmhsilva]

I've added string-inflection to my fork (fa20d65), but there is currently a bug upstream, so I'll hold off on the PR for now.

I've done nothing more than add the package and set up some keybindings (SPC x i prefix).

[github-actions]

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[rundong08]

Should be closed by #8084.