initial work for integrating sbc model framework v2

lib/art.scad

@@ -0,0 +1,12 @@
+/*
+
+    art(scale_d1,type,size_z)
+
+*/
+
+/* art work module */
+module art(scale_d1,size_z,type) {
+    
+    linear_extrude(height = size_z) import(file = type, scale=scale_d1);
+
+}