Restore previous support for progressbar pool

[afbjorklund]

Now shows output on two different lines instead of just one:

🚜  Pulling base image ...
💾  Downloading Kubernetes v1.20.7 preload ...
    > preloaded-images-k8s-v11-v1...:  492.20 MiB / 492.20 MiB  100.00% 22.08 MiB/s 22s01s
    > gcr.io/k8s-minikube/kicbase...:  359.09 MiB / 359.09 MiB  7.50 MiB/s 47s 

Had to downgrade github.com/cheggaaa/pb from V3 to V1 for it.

Pool was removed earlier in 7fa4e05

Closes #11069

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[afbjorklund]

Apparently this might break things on Windows, so should disable it there.

#4996 (comment)

[medyagh]

#4996 (comment)

hm...how about we use V3 in windows ? ( I think any progress bar is better than no progress bar ? ) we had a lot of users complanining they hate to wait looking at nothing when somehting was being downloaded

[afbjorklund]

I was just wondering how bad V1 was on Windows, without the pool...

But the progressbar should probably be abstracted into a separate class.
Then there could be different implementations for Unix and for Windows.

[medyagh]

I was just wondering how bad V1 was on Windows, without the pool...

But the progressbar should probably be abstracted into a separate class.
Then there could be different implementations for Unix and for Windows.

good idea lets do that

[afbjorklund]

So a new PR for that.