[New+, Enterprise]Policy for showing filename extension (#35000)

* add gpo: admx, gpo utils

* todo note

* BugReport tool

* implement policy in utility

* settings ui

* remove todo comment

* code fixes

* code fixes 2

* spell fix

src/modules/NewPlus/NewShellExtensionContextMenu/settings.cpp

@@ -175,6 +175,16 @@ bool NewSettings::GetEnabled()
 
 bool NewSettings::GetHideFileExtension() const
 {
+    auto gpoSetting = powertoys_gpo::getConfiguredNewPlusHideTemplateFilenameExtensionValue();
+    if (gpoSetting == powertoys_gpo::gpo_rule_configured_enabled)
+    {
+        return true;
+    }
+    if (gpoSetting == powertoys_gpo::gpo_rule_configured_disabled)
+    {
+        return false;
+    }
+
     return new_settings.hide_file_extension;
 }