Added WSF_ROUTER.pre_route_execution_actions: ACTION_SEQUENCE [like route]

This way, one can add logger hook to router, to see which "route" was taken by the request.

library/server/wsf/router/uri_template/wsf_uri_template_router_i.e

@@ -31,6 +31,7 @@ feature -- Initialization
 			create handlers.make (n)
 			create templates.make (n)
 			handlers.compare_objects
+			initialize
 		end
 
 	make_with_base_url (n: INTEGER; a_base_url: like base_url)