Need to be able to run IT test case in Restcomm instances with self-signed certs

[atsakiridis]

Right now the problem is that in TCs where we need to issues REST requests towards Restcomm, AsyncHttpClient doesn't let us configure it in a way that allows self-signed certs. I have already tried numerous things, but none seems to work

We need to improve that, as testing locally is absolutely needed.

If it remains impossible, we can consider switching REST framework, there are a lot out there

[atsakiridis]

I think @ognjenns has already fixed this for http stuff inside push, so we could probably similar way to fix IT

[atsakiridis]

Deferring for now as we are using legit certs in our IT