Added option to change cpu governor

scripts/cmenu.sh

@@ -23,10 +23,17 @@ require-service() {
     systemctl is-active --quiet $service || sysctl start $service
 }
 
-case "$(menu timer screenshot wallpaper wicd ncmpcpp ssh zomnet power)" in
+case "$(menu timer cpu screenshot wallpaper wicd ncmpcpp ssh zomnet power)" in
     timer)
         exec urxvt -geometry 50x3 -e ~/.config/scripts/teatimer.sh
         ;;
+    cpu)
+        choice=$(menu performance powersave)
+        case $choice in
+            performance|powersave)
+                exec gksu -S -m "Setting cpu to $choice" "cpupower frequency-set -g $choice"
+        esac
+        ;;
     screenshot)
         case "$(menu all selective)" in
             all)