Move AI examples to membrane demo repo

[FelonEkonom]

https://github.com/membraneframework-labs/membrane_style_transfer_plugin/blob/master/README.md

https://github.com/membraneframework/membrane_whisper_plugin/tree/master/examples

https://github.com/membraneframework/membrane_yolo_plugin/tree/master/examples

https://github.com/membraneframework/membrane_gemini_plugin/tree/master/examples