Add Body to net_packet_http

Documentation of [net_packet_http_response](https://aquasecurity.github.io/tracee/latest/docs/events/builtin/network/net_packet_http_response/) talks about Response Body, but it looks like this doesn't actually print the Body. I checked the source code, and it seems the Body field is not there either. Is it possible to add Body to the request and response ? maybe with some kind of limit.

Start by reading the net_packet_http_response documentation and comparing it with the source definitions for the request and response events. Determine where bounded request and response bodies would be represented, then update the implementation and documentation so the documented Body fields match the emitted events.

Written by the indexing model from the issue text.