Version 1.8

New Features:

- Get-RscVmwareVm now takes a cluster object via pipeline. e.g. `Get-RscCluster "foo" | Get-RscVmwareVm`
- Add snapshotconsistencylevel to vSphereVM fields that are fetched from API.

Fixes:

- Fixed issue with publishing SDK to PowerShell Gallery due to
  PowerShell 5.1 dependencies issues.
- Fixed an issue with access token auto-renewal not being saved in the
  PowerShell session (rseulting in multiple token renew calls).
- Corrected the -Relic switch in Get-RscVmwareVm to properly filter on relic status.
- Fixed an issue with mapping UNKNOWN values to schema enums.

Author: guirava