release: add A14 support, platform-agnostic secondary operations, and DFD download

[seppzer0]

Changelog:

• added support of kernel usage with A14 ROMs;
• replaced Linux-specific secondary operations (e.g., repository cleaning) with platform-agnostic solutions;
• added dm-verity and forceencrypt disabler download for ROM-only assets collection;
• decomposed run() method for AssetsCollector;
• fixed directory processing for bundle command;
• upgraded to KernelSU 0.8.1;
• refactored arguments list, Path() objects extension with "/" operator, interface and type hint usage etc;
• managed circular imports;
• updated documentation.