Add GPU profiles provided by Constantin Aanicai....
Add GPU profiles provided by Constantin Aanicai. https://kdenlive.org/en/2020/08/kdenlive-20-08-is-out/#comment-5089 Related to #504
Add GPU profiles provided by Constantin Aanicai. https://kdenlive.org/en/2020/08/kdenlive-20-08-is-out/#comment-5089 Related to #504