Hires Textures For Descent 1

D2X-XL v1.6.163 and up now supports usig hires textures in D1 missions! You need to put them in a subfolder named 'd1' of the textures folder (e.g. c:gamesdescent 2texturesd1).

This was made possible by changes to the texture management. These have caused a bit trouble, but trust me, bearing with me until all flaws have been smoothed out is worth it.