Introduce some kind of multi-package syntax.

[jaccarmac]

See https://github.com/jaccarmac/dot-emacs-dot-d/blob/e8f0b1fad81d82d6952f214396f67d1fce096ee3/init.el#L150-L153 for an example of what I consider to be bad syntax.

In the case that a package needs to be required with a different name than the recipe and/or multiple times, it would be nice to have a syntax to do so.

It's a bit weird to integrate this kind of behavior with the current syntax of the quse-package macro, but I have a couple ideas.

1. Introduce a cond-like section of the macro. But I wouldn't want to overwrite any names.
2. Add a second macro to the package, something like multiquse-package, which would take a single recipe and several cond-like branches with package names/use-package forms.