Create object and commands to assign global permission (#473)

[win32asm]

vCenter UI provides functionality to set 'global permissions' for accounts: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-C7702E31-1623-4189-89CB-E1136AA27972.html However, there is no automation for this operation.

The approach taken is to communicate with vCenter MOB and execute the request modelling browser operation.

[vmwclabot]

@win32asm, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <john.doe@email.org> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 4824d21c4d8f8da2d92ef37091654c2bcb4e57ce must be signed by vlad.bespalov@jetstreamsoft.com

[et1975]

Closes #473

[win32asm]

@et1975 does it make sense to change prefix of cmdlet object names from *-VcenterServer* to, say, *-VCMOB* ? like, Connect-VCMOBServer, Disconnect-VCMOBServer, Set-VCMOBGlobalPermission

[dmilov]

@lamw I see code borrowed from your repo in this PR. Can you take a look at the PR from the perspective of code VMware OSS policies? Thanks!

[lamw]

LGTM

[win32asm]

@dmilov anything else we need to do to have the code included? Thanks!