Log Message:
ancient: update to 2.2.0.

    Fixed a potential security issue where a malicious file can lead to \ 
undefined behavior and double free (fuzzing, thanks Sagamusix)
    Fixed cases where malicious files could take a long time to fail (fuzzing)
    Added more sanity checking and operations through index-checked containers \ 
instead of raw pointers
    Added support for RNC2 old bitstream
    Added support for VIC2 and Vice formats (Amiga)
    Added support for clone-formats (changed ids)
    Formatting the code to be more modern-C++ like
    Refactored SHR3 and SHRI to be a single implementation
    More test files