aquatic_ws_protocol: refactor, moving code into submodules

aquatic_ws_protocol/src/response/answer.rs

@@ -0,0 +1,16 @@
+use serde::{Deserialize, Serialize};
+
+use crate::common::*;
+
+/// If announce request has answer = true, send this to peer with
+/// peer id == "to_peer_id" field
+/// Action field should be 'announce'
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct MiddlemanAnswerToPeer {
+    pub action: AnnounceAction,
+    /// Note: if equal to client peer_id, client ignores answer
+    pub peer_id: PeerId,
+    pub info_hash: InfoHash,
+    pub answer: JsonValue,
+    pub offer_id: OfferId,
+}