Issue #218: Add comments to New-GcsObject and Write-GcsObject. (#296)
Issue #218: Add comments to New-GcsObject and Write-GcsObject. (#296)

Add comments to New-GcsObject and Write-GcsObject discussing when to use each.
Close #218 

ILMTitan/google-cloud-powershell,chrsmith/google-cloud-powershell,GoogleCloudPlatform/google-cloud-powershell