Add support to set template name during post-processing

[MalikKillian]

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Description

Add a function for the vSphere Template Post-Processor to rename the template.

Use Case(s)

My organization has set a standard for any and all templates to begin with the name template-. At current, I would have to create an actual VM that starts with template- and then convert it as part of the normal process. Otherwise there's manual intervention involved and that's what we're trying to avoid.

Potential configuration

Example of what the configuration might look like:

source "null" "example" {
    communicator = "none"
}

build {
    sources = [
        "source.null.example"
    ]

    post-processors {
      post-processor "vsphere-template"{
          template_name       = "template-testsql203"
          host                = "vcenter.example.com"
          insecure            = false
          username            = "administrator@vsphere.local"
          password            = "VMw@re1!"
          datacenter          = "dc-01"
          folder              = "/templates/os/distro"
      }
    }
}

Potential References

• VMWare vSphere - Change the Template Name

[tenthirtyam]

I've picked this one up for review.