govc: Add feature to pass fullname and org for windows vm customization

[rubinthomasdev]

Description

Added two new flags to pass the fullname and org for windows vm customization mandatory parameters.

Closes: #3443

Type of change

Please mark options that are relevant:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to
  not work as expected)
• This change requires a documentation update
• Build related change

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide
instructions so we can reproduce. If applicable, please also list any relevant
details for your test configuration.

• run below command to test that the vm is getting customized successfully

govc vm.customize -vm=<windows-vm-name> -u="<vcenter-url>" -dc="<datacenter-name>" -ip=<vm-ip> -netmask=<netmask> -gateway=<gateway-ip> -name=<windows-vm-name> -type=Windows -domain="<domain-name>" -username="firsname lastname" -org="myorg"

Checklist:

• My code follows the CONTRIBUTION guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged

[vmwclabot]

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[vmwclabot]

@rubinthomasdev, we have received your signed contributor license agreement. The review is usually completed within a week, but may take longer under certain circumstances. Another comment will be added to the pull request to notify you when the merge can proceed.

[dougm]

Thanks @rubinthomasdev , please run make doc and include the update to govc/USAGE.md
Then we can merge once the CLA is approved

[rubinthomasdev]

Thank you @dougm for the review. I have done the following changes based on the review :

1. run make doc to update the govc doc
2. removed the unnecessary check on empty strings and restructured the code based on the example above (thank you for the example).

[dougm]

One minor request on the doc. Could you also squash the commits and force push? We don't have the rebase option enabled for this repo, merge only. Thanks @rubinthomasdev

[rubinthomasdev]

@dougm Thank you for the suggestion. This makes the document more user friendly with Windows only : tag added. I have added the update and squashed and force pushed the changes.

[dougm]

Thanks @rubinthomasdev !

[vmwclabot]

@rubinthomasdev, VMware has approved your signed contributor license agreement.