
xsch and ysch were originally planed to replace the scene->r.xsch/r.ysch however in blender/3dview we still need to use the r. values. Therefore we can't really run from using those values even in bplayer. So removed the values in gamedata. The way it's now, render values (xsch and ysch) are responsible for aspect ratio and gamedata xplay and yplay are responsible for the size of the window.