sameboy: Update to 0.15.5

Version 0.15.5

  This version is backwards compatible with save states from SameBoy 0.14.3
  and newer, as well as save states from any BESS compliant emulator

  New/Improved Features

    * Both frontends now include links to the debugger documentation and to
      the GitHub Sponsors page

  Accuracy Improvements/Fixes

    * Fixed a bug where certain color correction modes were desaturating
      colors in an unbalanced manner
    * Accurate emulation of the first-frame-behavior while emulating the
      Game Boy Color and Game Boy Advance; fixes white flashes while playing
      games developed by THQ
    * More accurate emulation of the square channels sample repeat glitch,
      fixing certain audio pops in LSDj and various games while using a
      vibrato effect

  Bug Fixes

    * Fixed a bug where MBC state was not properly reset, fixing bugs
      resulting in some games not booting correctly if they were loaded
      after certain other games in the SDL frontend, libretro, and other
      3rd-party frontends

  Misc Internal Changes

    * New memory management APIs for better integration of SameBoy as a
      library

(nia)