add blank material files

valve/pbr/halflife.wad/+~GYMLIGHT/+~GYMLIGHT.mat

@@ -0,0 +1,16 @@
+
+{
+"for" "+0~GYMLIGHT"
+//"basecolor_map" "+0~GYMLIGHT.png"
+//"normal_map" "+0~GYMLIGHT_normal.png"
+//"metal_map" "+0~GYMLIGHT_metal.png"
+//"roughness_map" "+0~GYMLIGHT_roughness.png"
+}
+
+{
+"for" "+A~GYMLIGHT"
+//"basecolor_map" "+A~GYMLIGHT.png"
+//"normal_map" "+A~GYMLIGHT_normal.png"
+//"metal_map" "+A~GYMLIGHT_metal.png"
+//"roughness_map" "+A~GYMLIGHT_roughness.png"
+}