Warn about disk wipe for Invoke-OSDCloudZTI

[jgstew]

• https://github.com/OSDeploy/OSDCloud/blob/main/Invoke-OSDCloudZTI.ps1

Might be good to include a warning message at the start about the disk being wiped without prompting / all user data will be lost and use Ctrl+C to stop everything if wiping the disk is not desired.

I do realize most people using this SHOULD be a ware, but seems like a good thing to add.

[OSDeploy]

Keep in mind the OSDCloud Git Repository is an example on how to call Invoke-OSDCloudZTI.ps1. You should be making your own OSDCloud Repository and putting your own custom script. Here is the documentation on why this script was placed in here https://osdcloud.osdeploy.com/get-started/invoke-osdcloud