Implemented struct size calculation after a scan

src/types/Float.go

@@ -1,7 +1,7 @@
 package types
 
 var (
-	Float64 = &Struct{name: "Float64", size: 8}
-	Float32 = &Struct{name: "Float32", size: 4}
+	Float64 = &Base{name: "Float64", size: 8}
+	Float32 = &Base{name: "Float32", size: 4}
 	Float   = Float64
 )