Changed texture import so that original nif texture path is preserved if file...

Changed texture import so that original nif texture path is preserved if file is not found, allowing re-export with working textures.

io_scene_niftools/modules/nif_import/property/texture/loader.py

@@ -184,6 +184,7 @@ class TextureLoader:
             except:
                 NifLog.warn(f"Texture '{name}' not found or not supported and no alternate available")
                 b_image = bpy.data.images.new(name=name, width=1, height=1, alpha=True)
+                b_image.filepath=tex_path
         else:
             b_image = bpy.data.images[name]
         return b_image
@@ -286,6 +287,6 @@ class TextureLoader:
                     return self.load_image(tex)
 
         else:
-            tex = os.path.join(search_path_list[0], fn)
+            tex = fn
         # probably not found, but load a dummy regardless
         return self.load_image(tex)