Adds tests for Hyper-V Host utils

Adds unit tests for Hyper-V HostUtils class.

Co-Authored-By: Adrian Bora <abora@cloudbasesolutions.com>

Partial-Bug: #1220256

Change-Id: Ife8bd054e467209692225087cf29d0f50f60a05b
Merge "Adds tests for Hyper-V Host utils"