Add .NET Core MVC with Templates vs Iris MVC with Templates

https://hackernoon.com/go-vs-net-core-in-terms-of-http-performance-7535a61b67b8

Former-commit-id: dabf2d23a2f8a341ded9fc87ced82300855e26a6

_benchmarks/iris-mvc-templates/controllers/contact_controller.go

@@ -0,0 +1,11 @@
+package controllers
+
+import "github.com/kataras/iris/mvc"
+
+type ContactController struct{ mvc.Controller }
+
+func (c *ContactController) Get() {
+	c.Data["Title"] = "Contact"
+	c.Data["Message"] = "Your contact page."
+	c.Tmpl = "contact.html"
+}