disk uploader should update the status of the download and upload progress

[codingben]

Add to the status of the disk-uploader pod the download progress, and upload progress when uploading a containerDisk to the container registry, it helps UI to show this status in the web console for the user.

/cc @ksimon1

[codingben]

I've got a suggestion from @akalenyu to alsow show the status of download from the source, of the disk image file, before we're uploading it to the container registry.

@akalenyu wanted to share how to output the download progress using nbdkit and qemu-img?

[kubevirt-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

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/lifecycle stale

[codingben]

/remove-lifecycle stale

[kubevirt-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[codingben]

/remove-lifecycle stale

[kubevirt-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale