feat(proxy): expose proxy middleware utilities (#1599) (#1600)

* feat(proxy): expose middleware utilities via public API

* feat(proxy): expose middleware utilities via public API (#1599)

* feat(proxy): expose middleware utilities via public API (#1599)

* feat(proxy): expose middleware utilities (#1599)

---------

Co-authored-by: Kris West <kristopher.west@natwest.com>

Author: rajeevr-g

src/proxy/index.ts

@@ -18,7 +18,10 @@ import express, { Express } from 'express';
 import http from 'http';
 import https from 'https';
 import fs from 'fs';
+
 import { getRouter } from './routes';
+export * from './routes';
+
 import {
   getAuthorisedList,
   getPlugins,