Add support for generating collectors from remote systems

tools/collector-generator/New-Collector.ps1

@@ -2,9 +2,22 @@ Param(
     [Parameter(Mandatory=$true)]
     $Class,
     [Parameter(Mandatory=$false)]
-    $CollectorName = ($Class -replace 'Win32_PerfRawData_Perf','')
+    $CollectorName = ($Class -replace 'Win32_PerfRawData_Perf',''),
+    [Parameter(Mandatory=$false)]
+    $ComputerName = "localhost",
+    [Parameter(Mandatory=$false)]
+    $Credential
 )
-$members = Get-WMIObject $Class `
+$ErrorActionPreference = "Stop"
+
+if($Credential -ne $null) {
+    $wmiObject = Get-WMIObject -ComputerName $ComputerName -Credential $Credential -Class $Class
+}
+else {
+    $wmiObject = Get-WMIObject -ComputerName $ComputerName -Class $Class
+}
+
+$members = $wmiObject `
     | Get-Member -MemberType Properties `
     | Where-Object { $_.Definition -Match '^u?int' -and $_.Name -NotMatch '_' } `
     | Select-Object Name, @{Name="Type";Expression={$_.Definition.Split(" ")[0]}}