CoreGUI V1.2.0

updates

• The Task Manager icon in f1 now has an appropriate icon
• Further icons have been added to F1 items
• powerz menu has been introduced
• tasklistz now has a global dark theme
• The OpenSM menu item has been added to f1 for users of VPI-based Mellanox cards
• Check for updates button has been re-enabled in CoreSettings, however this currently doesn't function properly
• App transparency slider has been added to CoreSettings