Eager http detection

[Razz4780]

Contains changes required for mirroring on the HTTP level:

Implementation changes

HTTP is handled in a separate component. This component:

1. Runs HTTP detection and extracts requests
2. Handles raw IO on streams, exposing data through channels

This will allow for mirroring all redirected traffic, including HTTP requests. Basically, the component will be exposed to the new sniffer implementation, and wherever we have an mpsc channel, we'll also have a broadcast channel.

Behavior changes

1. mirrord-agent runs HTTP detection on all redirected connections, even when we have an unfiltered subscription from the client. Current behavior - HTTP detection is run only when there is a filtered steal subscription.
2. mirrord-agent runs a TLS server always when there is a TLS steal config for the destination port. So it now handles non-HTTP TLS traffic. Current behavior - TLS server is run only when there is a TLS steal config and there is a filtered steal subscription.

The internal proxy has been ready for these since this PR.