[9.x] Break out quotes method

[dwightwatson]

This is a little odd so I'm happy if this considered not worth fixing, but I've been using Illuminate\Foundation\Inspiring::quote() in my production app - showing a nice quote to our internal teams when they've completed the list of pending tasks.

Despite the lovely new changes to the console, it appears the quote is formatted for the console regardless of the context:

<options=bold>“ Happiness is not something readymade. It comes from your own actions. ”</> <fg=gray>— Dalai Lama</>

This breaks out a quotes method so the quotes can be accessed separately. It'll mean I can just do Inspiring::quotes::random() in my own code and not impact the existing use-cases of quote().