Merge #515
515: Allow accessing fetched entities of a `Storage` r=Xaeroxe a=torkleyy
I've added `Storage::entities` to allow making extension methods for `Storage` that return `Entity`.
This method is hidden because I'm 100% certain newcomers will be confused by this otherwise. This makes it less visible, yes, but I think that's worth for avoiding this confusion.
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Co-authored-by: Thomas Schaller <[email protected]>
