Added Power Actions sample actions

Signed-off-by: Kamen Nikolov <knikolov@vmware.com>

PowerActions/Example - ClusterSnapshotsReport.ps1

@@ -0,0 +1,51 @@
+param (
+    [Parameter(Mandatory=$true)]    
+    [VMware.VimAutomation.ViCore.Types.V1.Inventory.Cluster[]] $cluster, 
+    [Parameter(Mandatory=$true)]
+    [string] $smtp,
+    [Parameter(Mandatory=$true)]
+    [string] $email)
+
+$vms = Get-VM -Location $cluster
+$snapshots = @()
+foreach ($vm in $vms) {
+    $snapshots += Get-Snapshot -VM $vm    
+}
+
+$header = @"
+<style>
+   table {
+		font-size: 12px;
+		border: 0px; 
+		font-family: Arial, Helvetica, sans-serif;
+	} 
+	
+    td {
+		padding: 4px;
+		margin: 0px;
+		border: 0;
+	}
+    th {
+        background: #395870;
+        background: linear-gradient(#49708f, #293f50);
+        color: #fff;
+        font-size: 11px;
+        text-transform: uppercase;
+        padding: 10px 15px;
+        vertical-align: middle;
+	}
+    tbody tr:nth-child(even) {
+        background: #f0f0f2;
+    }
+</style>
+"@
+
+$snapshots | select Name,VM,Created,@{Name="Size";Expression={[math]::Round($_.SizeMB,3)}},IsCurrent | `
+    ConvertTo-Html -head $header | Out-File "SnapshotReport.html"
+
+Send-MailMessage -from "Snapshot Reports <noreply@vmware.com>" `
+                -to $email `
+                -subject "Snapshot Report" `
+                -body "Cluster snapshot report" `
+                -Attachment "SnapshotReport.html" `
+                -smtpServer $smtp

PowerActions/Example - RemoveOldClusterSnapshots.ps1

@@ -0,0 +1,17 @@
+param (
+    [Parameter(Mandatory=$true)]    
+    [VMware.VimAutomation.ViCore.Types.V1.Inventory.Cluster] $cluster, 
+    [DateTime] $date)
+
+if ($null -eq $date) {
+    $date = (Get-Date).AddDays(-7)
+}
+
+$vms = Get-VM -Location $cluster
+foreach ($vm in $vms) {
+    $snaphostsToBeRemoved = Get-Snapshot -VM $vm | where {$_.Created -lt $date}
+    if ($null -ne $snaphostsToBeRemoved) {
+        Write-Host "Removing snapshots: " + $snaphostsToBeRemoved + " of VM: " + $vm
+        Remove-Snapshot $snaphostsToBeRemoved -Confirm:$false
+    }
+}