Added Close-Session cmdlet

functions/public/Close-Session.ps1

@@ -0,0 +1,20 @@
+function Close-Session {
+    <#
+        .SYNOPSIS
+
+        Removes (revokes) token.
+    #>
+    [CmdletBinding()]
+    param()
+    process {
+        $_params = @{
+            Controller = [PS.IPAM.controllers]::user
+            Method     = "DELETE"
+        }
+
+        Invoke-Request @_params
+
+        $script:psipamSession = $null
+    }
+}
+Export-ModuleMember Close-Session