Implement a new View Engine for the Jet template parser as requested at: https://github.com/kataras/iris/issues/1281

Former-commit-id: 3e00bdfbf1f3998a1744c390c12fd70430ac0320

view/engine.go

@@ -29,3 +29,15 @@ type Engine interface {
 	// Ext should return the final file extension which this view engine is responsible to render.
 	Ext() string
 }
+
+type namedEngine interface {
+	String() string
+}
+
+func getEngineName(e Engine) string {
+	if n, ok := e.(namedEngine); ok {
+		return n.String()
+	}
+
+	return ""
+}