Added new script to windows folder (#144)

Scripts/Windows/group_policy_settings.ps1

@@ -0,0 +1,22 @@
+param(
+    [Parameter(Mandatory = $True)]
+    [Int]$MaxPwdAge,
+
+    [Parameter(Mandatory = $True)]
+    [Int]$MinPwdAge,
+
+    [Parameter(Mandatory = $True)]
+    [Int]$MinPwdLength,
+
+    [Parameter(Mandatory = $True)]
+    [Int]$PwdHistoryCount,
+
+    [Parameter(Mandatory = $True)]
+    [String]$Identity
+) 
+
+$maximumPwdAge = New-TimeSpan -Days $MaxPwdAge
+$minimumPwdAge = New-TimeSpan -Days $MinPwdAge
+
+
+Set-ADDefaultDomainPasswordPolicy -ComplexityEnabled $true -MaxPasswordAge $maximumPwdAge -MinPasswordAge $minimumPwdAge -MinPasswordLength $MinPwdLength -PasswordHistoryCount $PwdHistoryCount -Identity $Identity