Add basic models

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

src/models/actor.rs

@@ -0,0 +1,15 @@
+use std::net::IpAddr;
+
+use serde::{Deserialize, Serialize};
+
+use crate::time::Timestamp;
+
+#[derive(Serialize, Deserialize)]
+pub struct Actor {
+    id: u32,
+    pubkey: String,
+    /// IP where the actor is reachable, can be mycelium but that is not mandatory
+    address: Vec<IpAddr>,
+    created_at: Timestamp,
+    updated_at: Timestamp,
+}