Overhaul stats events: merge HTTP core events with a different IP version

[josecelano]

Change HTTP core tracker events (bittorrent_http_tracker_core::statistics::event::Event) from this:

pub enum Event {
    Tcp4Announce,
    Tcp4Scrape,
    Tcp6Announce,
    Tcp6Scrape,
}

To this:

pub enum Event {
    TcpAnnounce { connection: ConnectionContext },
    TcpScrape { connection: ConnectionContext },
}

pub struct ConnectionContext {
    client: ClientConnectionContext,
    server: ServerConnectionContext,
}

pub struct ClientConnectionContext {
    ip_addr: IpAddr,
    port: Option<u16>,
}

pub struct ServerConnectionContext {
    socket_addr: SocketAddr,
}

Sub-tasks

• Add ConnectionContext to events.
• Merge events with the same request type (announce and scrape).
• Add client port to ConnectionContext. ClientIpSources type and the packages/axum-http-tracker-server/src/v1/extractors/client_ip_sources.rs Axum extractor have to be changed to include also the port.

[codecov]

Codecov Report

Attention: Patch coverage is 99.26471% with 2 lines in your changes missing coverage. Please review.

Project coverage is 81.77%. Comparing base (3d3d0c7) to head (1f30f8e).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ackages/http-tracker-core/src/services/announce.rs	98.07%	1 Missing ⚠️
packages/http-tracker-core/src/services/scrape.rs	98.78%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1374      +/-   ##
===========================================
+ Coverage    81.59%   81.77%   +0.18%     
===========================================
  Files          229      230       +1     
  Lines        16618    16806     +188     
  Branches     16618    16806     +188     
===========================================
+ Hits         13559    13743     +184     
- Misses        2818     2821       +3     
- Partials       241      242       +1     

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[josecelano]

ACK 1f30f8e