SSL/TLS termination at the application level

This is a feature request for SSL/TLS termination at the application level.

SSL/TLS termination refers to the process of decrypting encrypted traffic (HTTPS)

Until now all deployments of the mediator is either for a developing environment or it uses proxies for SSL/TLS termination.
Which is a perfect good option. But would be nice if we give the option of deploy a production environment as a standalone without any other requirements (a proxy).

(More concretely a standalone in the context of the JVM application. Without using Docker with a proxy inside)

Should be straightforward to make SSL/TLS termination at the application level.
Here is an example using a hard code certificate in the resource:
```scala
val sslConfig = SSLConfig.fromResource(
behaviour = SSLConfig.HttpBehaviour.Accept,
certPath = "server.crt",
keyPath = "server.key",
)

private val config = Server.Config.default
.port(8090)
.ssl(sslConfig)
```
Just a question what is the best way to pass the certificate.

This is it not on the **roadmap**!
So if you want this issue please comment here!