remove combined {models,sprites}.mat, remove extra .mdl .spr exts

bshift/pbr/models/barnacle.mdl/barnacle.mat

@@ -0,0 +1,40 @@
+
+{
+"for" "#models/barnacle/gums.mdl"
+//"basecolor_map" "gums.png"
+//"normal_map" "gums_normal.png"
+//"metal_map" "gums_metal.png"
+//"roughness_map" "gums_roughness.png"
+}
+
+{
+"for" "#models/barnacle/mouth_teeth.mdl"
+//"basecolor_map" "mouth_teeth.png"
+//"normal_map" "mouth_teeth_normal.png"
+//"metal_map" "mouth_teeth_metal.png"
+//"roughness_map" "mouth_teeth_roughness.png"
+}
+
+{
+"for" "#models/barnacle/sidemap.mdl"
+//"basecolor_map" "sidemap.png"
+//"normal_map" "sidemap_normal.png"
+//"metal_map" "sidemap_metal.png"
+//"roughness_map" "sidemap_roughness.png"
+}
+
+{
+"for" "#models/barnacle/teeth.mdl"
+//"basecolor_map" "teeth.png"
+//"normal_map" "teeth_normal.png"
+//"metal_map" "teeth_metal.png"
+//"roughness_map" "teeth_roughness.png"
+}
+
+{
+"for" "#models/barnacle/tounge.mdl"
+//"basecolor_map" "tounge.png"
+//"normal_map" "tounge_normal.png"
+//"metal_map" "tounge_metal.png"
+//"roughness_map" "tounge_roughness.png"
+}