New options for check key: Detect fake keys and show/hide dead keys

Hi everyone! I added 2 options for check key page: 1.Detect fake keys: If this options is enabled, you will get error for that key, if return error code is: 0xC004C004, that means the key is a fake key. Please use this option in your own of risk, you may lose activation times! 2.Hide dead keys: you can toggle between show/hide dead keys, to view and copy product keys you need. Best regards!