Adds support for proper requestBody examples. Adds mechanism to allow for adding additional ways to add request body examples

Can add externalValue or  it will work and produce valid swagger spec.

The Symbol name matching the let parameter is always required

test-app/app/controllers/blogs_controller.rb

@@ -19,6 +19,14 @@ class BlogsController < ApplicationController
     respond_with @blog
   end
 
+  # POST /blogs/alternate
+  def alternate_create
+
+    # contrived example to show different :examples in the requestBody section
+    @blog = Blog.create(params.require(:blog).permit(:title, :content))
+    respond_with @blog
+  end
+
   # Put /blogs/1
   def upload
     @blog = Blog.find_by_id(params[:id])