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

valve/pbr/models/gib_hgrunt.mdl/gib_hgrunt.mat

@@ -0,0 +1,40 @@
+
+{
+"for" "#models/gib_hgrunt/bootfront.mdl"
+//"basecolor_map" "bootfront.png"
+//"normal_map" "bootfront_normal.png"
+//"metal_map" "bootfront_metal.png"
+//"roughness_map" "bootfront_roughness.png"
+}
+
+{
+"for" "#models/gib_hgrunt/bootside.mdl"
+//"basecolor_map" "bootside.png"
+//"normal_map" "bootside_normal.png"
+//"metal_map" "bootside_metal.png"
+//"roughness_map" "bootside_roughness.png"
+}
+
+{
+"for" "#models/gib_hgrunt/footbottom.mdl"
+//"basecolor_map" "footbottom.png"
+//"normal_map" "footbottom_normal.png"
+//"metal_map" "footbottom_metal.png"
+//"roughness_map" "footbottom_roughness.png"
+}
+
+{
+"for" "#models/gib_hgrunt/legfront.mdl"
+//"basecolor_map" "legfront.png"
+//"normal_map" "legfront_normal.png"
+//"metal_map" "legfront_metal.png"
+//"roughness_map" "legfront_roughness.png"
+}
+
+{
+"for" "#models/gib_hgrunt/limbsection.mdl"
+//"basecolor_map" "limbsection.png"
+//"normal_map" "limbsection_normal.png"
+//"metal_map" "limbsection_metal.png"
+//"roughness_map" "limbsection_roughness.png"
+}