games/woof: Update to 6.3.1

Woof! 6.3.1
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- SDL's endianness swapping functions are now used.
- A demo footer is added when recording a demo (@rfomin).
- The EV_BuildStairs() implementation has been brought in line with
  PrBoom+ (@rfomin).
- Support for the COMPLVL lump has been added (@rfomin).
- The UMAPINFO demo extension header has been deprecated (@rfomin).

Woof! 6.3.0
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- Initialization of the total time counter on the intermission screen
  has been fixed, which affects 'complevel mbf' demo compatibility
  (@rfomin).
- Resetting of the compatibility vector has been fixed when loading
  'complevel vanilla' savegames (@rfomin).
- Saving during demo playback has been fixed (@rfomin).
- Status bar refresh is enforced in the Main, Episode and Skill menus
  as in Crispy Doom (@rfomin).
- Loading savegames during multiplayer demo playback (e.g. AV.WAD
  DEMO1) has been fixed (@rfomin).
- Demos without 'PR+UM' signature are now ignored (@rfomin).
- SFX are now interpolated in a 16-bit int domain.
- The default endpic has been fixed for UMAPINFO (@rfomin).
- Dehacked patches from the command line are now processed after
  mobjinfo initialization (@rfomin).
- Randomly mirrored death animations have been ported over from
  Crispy Doom (@rfomin).
- Blood color patches have been added for Rekkr and Hacx (@rfomin).

(micha)