brush texture to material mapping and material changes

Content/Settings/GameSettings/BrushMaterialAssets.json

@@ -0,0 +1,21 @@
+{
+	"ID": "29a0b0c54b40eb3e6857ffb4c9cab71e",
+	"TypeName": "Game.BrushMaterialList",
+	"EngineBuild": 6224,
+	"Data": {
+	"materialAssets": [
+		{
+			"name": "common/slick",
+			"asset": "c27c22ec429a17e827421e9a82ac79e4"
+		},
+		{
+			"name": "dev/dev_128_gray",
+			"asset": "cfe2d8d64700dc00dc2c5088ee028477"
+		},
+		{
+			"name": "dev/dev_128_red",
+			"asset": "a75d425f40ef7ba5df0fdb8d470e8a78"
+		}
+	]
+}
+}