SHA1 Hash Check of ESD file after download

[gwblok]

NO ETA

Include error handling if ESD file fails to download. Do a SHA1 Hash check to verify it downloaded properly, and if not, exit with appropriate error message.

Notes:
$SHA1Hash = Get-FileHash $ImagePath -Algorithm SHA1
$ESDFile = Get-OSDCloudOperatingSystems -OSArch x64 | (SELECT THE exact OS)
($SHA1Hash.Hash -eq $ESDFile.SHA1)