Add support for NVME, update and shared disk creation in vcd_independent_disk resource

[vbauzys]

Ref: #699
Ref: #430
Ref: #694

Resource vcd_independent_disk improvements:

• allows creating additionally shared disks types by configuring sharing_type
• Add update support
• Add new disk type NVME (requires vmx-13 hardware version VMs)
• New attributes encrypted and uuid
• Import now allows listing all independent disks in VDC

Sharing disk creation requires a specific configuration in env. Our used test storage profiles do not support shared disks creation. So no tests were added to support that. Overall it's just additional property sent to API.

There is a possibility to update the existing storage profile using Vsphere (sync by creating a new one failed).

• Create a new tag
• Add this new tag to storages which are type VMFS 6
• Update existing storage profile to use new tag
• Resync Vsphere connection in VCD
  Additionally, what I saw was that far more changes in Vsphere configuration are needed when such disks start to be used by a few VMs at the same time. Storages have to support multi writes and so on.

Tested with 10.2.2 and 10.3.1

Also updated vcd_independent_disk to not use deprecated schema.Resource fields for create/update/delete/import, now it uses CreateContext, UpdateContext, ReadContext, DeleteContext.

Also functions return the diag.Diagnostics struct instead of plain Go errors, to adjust their signature to the new CreateContext, UpdateContext, ReadContext, DeleteContext fields.

[Didainius]

First pass

[mikeletux]

LGTM! Approved! Thanks for this awesome work! 🚀
Tested also manually on VCD 10.3.2 and it works as a charm!

Maybe we could test it agains VCD 10.2.0. That's the only comment that I have 😄

[Didainius]

I tested manually as good as I could and these locks look to have been working.

[lvirbalas]

LGTM, thanks for all the updates!