start example/test for components access

examples/components/components.go

@@ -0,0 +1,20 @@
+package components
+
+type Struct struct {
+	Byte       byte
+	Uint32     uint32
+	Uint64     uint64
+	Float32    float32
+	Float64    float64
+	String     string
+	Slice      []Sub
+	Array      [5]Sub
+	Complex64  complex64
+	Complex128 complex128
+}
+
+type Sub struct {
+	A uint64
+	B [3]byte
+	C uint16
+}