Implement column which will display size, used by volume

[KES777]

Is your feature request related to a problem? Please describe.
Want to do clean ups on system.

Describe the solution you'd like
Want to see volumes, which takes much disk space, eg. column which display amount of used space.

[pktiuk]

I really miss this feature.
For now, there is no easy way of checking how much disk space is taken.