added script to update wireguard if it's installed

Update-Wireguard.ps1

@@ -0,0 +1,21 @@
+If (IsAdmin) {
+
+    ## Get the path to wireguard.exe
+    If (Test-Path "${Env:ProgramFiles}\Wireguard\wireguard.exe") {
+        $PATH = "${Env:ProgramFiles}\Wireguard\wireguard.exe"
+    }
+    ElseIf (Test-Path "${Env:ProgramFiles}\Wireguard\wireguard.exe") {
+        $PATH = "${Env:ProgramFiles}\Wireguard\wireguard.exe"
+    }
+    Else { $PATH = "" }
+
+    ## If the path to wireguard.exe is found, update the app
+    If ( -not [string]::IsNullOrEmpty($PATH) ) {
+        LogMsg "Updating Wireguard"
+        Try { Start-Process $PATH -ArgumentList "/update" -Wait }
+        Catch { LogErr $_.Exception.Message }
+        LogMsg "Finished updating Wireguard"
+    }
+}
+
+Else { LogMsg "You must be a local administrator to update Wireguard" }