added lookback & mixedaudio!

Tools to modify android system via shizuku. Contains some easy-to-use tools to go beyond the level of control allowed by Android System. Tools - Debloater - Uninstall system apps and bloatware, with app descriptions from UAD. ThemePatcher - Unlocks premium content for free, from the Oppo/Realme/Oneplus theme store. LookBack - Allows downgrade of apps, without uninstallation. MixedAudio - Allows multiple media apps to play at the same time. May cause some apps to crash. ADB Shell - Execute other raw ADB commands.