add blank material files

valve/pbr/halflife.wad/+BUTTONSUIT/+BUTTONSUIT.mat

@@ -0,0 +1,16 @@
+
+{
+"for" "+0BUTTONSUIT"
+//"basecolor_map" "+0BUTTONSUIT.png"
+//"normal_map" "+0BUTTONSUIT_normal.png"
+//"metal_map" "+0BUTTONSUIT_metal.png"
+//"roughness_map" "+0BUTTONSUIT_roughness.png"
+}
+
+{
+"for" "+ABUTTONSUIT"
+//"basecolor_map" "+ABUTTONSUIT.png"
+//"normal_map" "+ABUTTONSUIT_normal.png"
+//"metal_map" "+ABUTTONSUIT_metal.png"
+//"roughness_map" "+ABUTTONSUIT_roughness.png"
+}