mTLS support for http request plugin

Version used: 4.14.1

Currently I can only see an option to use a Client Secret when creating an HTTP request through the HTTP plugin, and I'm not able to add my own custom properties.

In my case, I want to be able to send a POST request and use the following flags:
 *  --cacert 
 *  --cert 
 *  --key 

 

