Add progress bar when import disk from path

[OpenNebulaProject]

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Author Name: Yannick MOLINET (Yannick MOLINET)
Original Redmine Issue: 4717, https://dev.opennebula.org/issues/4717
Original Date: 2016-08-17

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Currently, the progress bar is only show on an upload import.
When import from path, we don't have a progress bar.

[OpenNebulaProject]

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Original Redmine Comment
Author Name: Yannick MOLINET (Yannick MOLINET)
Original Date: 2016-08-21T15:06:14Z

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also when cloning a disk

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. The OpenNebula Dev Team

[stale]

This issue has been automatically closed due to lack of activity/feedback. Please reopen if you have further input or need to bump this. The OpenNebula Dev Team

[tinova]

worth considering, reopening