add blank material files

bshift/pbr/barney.wad/+~pwr_ind_01/+~pwr_ind_01.mat

@@ -0,0 +1,16 @@
+
+{
+"for" "+0~pwr_ind_01"
+//"basecolor_map" "+0~pwr_ind_01.png"
+//"normal_map" "+0~pwr_ind_01_normal.png"
+//"metal_map" "+0~pwr_ind_01_metal.png"
+//"roughness_map" "+0~pwr_ind_01_roughness.png"
+}
+
+{
+"for" "+A~pwr_ind_01"
+//"basecolor_map" "+A~pwr_ind_01.png"
+//"normal_map" "+A~pwr_ind_01_normal.png"
+//"metal_map" "+A~pwr_ind_01_metal.png"
+//"roughness_map" "+A~pwr_ind_01_roughness.png"
+}