Ad Hoc Improvements

[0xABADCAFE]

New Stuff Implemented zone tagging for areas that erroniously contain sky should not be visible.

• This can be dumped are reloaded as level errata.
• In Devmode:
  • Z clears all current sky visibility override data
  • X toggles the visibility of the sky in the current zone, but only if the zone is tagged by the level editor as having sky in the first place.
  • V triggers the dumping of the sky visibility override data to ram:backdrop_disable.dat.
• In Dev / Test / Release mode:
  • Copying this file to the Level directory and renaming as properties.dat will cause the game to reload the data and use it accordingly

Added menu option for disabling music

• Currently nonfunctional but will be used to disable the in game mod player.

Clean Up Removed the last vestages of the old Draw_NarrateText code that was used to render messages onto the bottom 640 strip in the original game. This was called from the pause logic.