ManageTagsOnDisk

This script will allow you to add, replace or remove a specific tag from any Disk that matches a search criteria
using parameters -ManageThisTag or ManageThisTag and ManageThisTagValue. It will also allow you to Copy tags
from the Virtual Machine that owns the Disk. The Copy function of the script will overwrite the existing
Tags on the Disk with those from the VM. If you wanted to keep some of the Tags on the Disk that are not on
the Virtual Machine, then you can you Merge function. The Merge Function will combine Tags from the VM and Disk.
For those tags that exist on both VM and Disk, you can specify which of the two values will be kept by using
the switches -vmwins or -diskwins.