Create vVolsReadinessCheckerV2.ps1

Updated from https://github.com/bdwill/vvolsreadinesschecker/blob/master/VVolsReadinessChecker.ps1
Included support for PowerShell Core
Added vCenter NTP Server Check

Appreciate the assist from William Lam & Michael Dunsdon for the Get-VAMIServiceAPI and Get-VAMITime functions
Located here: https://github.com/vmware/PowerCLI-Example-Scripts/blob/master/Modules/VAMI/VAMI.psm1

Author: jasemccarty