add blank material files

valve/pbr/halflife.wad/-FIFTIES_W13B/-FIFTIES_W13B.mat

@@ -0,0 +1,16 @@
+
+{
+"for" "-0FIFTIES_W13B"
+//"basecolor_map" "-0FIFTIES_W13B.png"
+//"normal_map" "-0FIFTIES_W13B_normal.png"
+//"metal_map" "-0FIFTIES_W13B_metal.png"
+//"roughness_map" "-0FIFTIES_W13B_roughness.png"
+}
+
+{
+"for" "-1FIFTIES_W13B"
+//"basecolor_map" "-1FIFTIES_W13B.png"
+//"normal_map" "-1FIFTIES_W13B_normal.png"
+//"metal_map" "-1FIFTIES_W13B_metal.png"
+//"roughness_map" "-1FIFTIES_W13B_roughness.png"
+}