imresize cannot be deprecated just yet

[Atcold]

Using imresize I get the following warning

`imresize` is deprecated in SciPy 1.0.0, and will be removed in 1.2.0.
Use ``skimage.transform.resize`` instead.

skimage.transform.resize and .scale do not have any interpolation option, so it is not a viable replacement for imresize. Now I'm not sure I should open an issue at skimage or here. I start here because your routine is actually more versatile than skimage's.

[pv]

imresize is just thin wrapper for Pillow.Image.resize, so the resizing code is not "ours".

[Atcold]

Fine, then what about pointing that out in the warning message?
skimage.transform.resize is way too limited.

[ev-br]

@Atcold care to submit a PR with an enhancement to the deprecation message?

[Atcold]

Yes, I can. I'll do it later, this week.

[Atcold]

Done here #8971
I hope it's fine.

[ev-br]

Closed by #8971