Add NormalizedName interface

Add interface for for a normalized name and corresponding parser for that type.
New normalized versions of all interfaces are not added since all type information is preserved on calls to Familiar.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)

reference/helpers.go

@@ -10,3 +10,21 @@ func IsNameOnly(ref Named) bool {
 	}
 	return true
 }
+
+// FamiliarName returns the familiar name string
+// for the given named, familiarizing if needed.
+func FamiliarName(ref Named) string {
+	if nn, ok := ref.(NormalizedNamed); ok {
+		return nn.Familiar().Name()
+	}
+	return ref.Name()
+}
+
+// FamiliarString returns the familiar string representation
+// for the given reference, familiarizing if needed.
+func FamiliarString(ref Reference) string {
+	if nn, ok := ref.(NormalizedNamed); ok {
+		return nn.Familiar().String()
+	}
+	return ref.String()
+}