Play time tracking: Job timers 3: more titles: when the (#9978)

Co-authored-by: Veritius <veritiusgaming@gmail.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Players/PlayTimeTracking/MsgPlayTime.cs

@@ -0,0 +1,34 @@
+using Lidgren.Network;
+using Robust.Shared.Network;
+
+namespace Content.Shared.Players.PlayTimeTracking;
+
+/// <summary>
+/// Sent server -> client to inform the client of their play times.
+/// </summary>
+public sealed class MsgPlayTime : NetMessage
+{
+    public override MsgGroups MsgGroup => MsgGroups.EntityEvent;
+
+    public Dictionary<string, TimeSpan> Trackers = new();
+
+    public override void ReadFromBuffer(NetIncomingMessage buffer)
+    {
+        var count = buffer.ReadVariableInt32();
+        for (var i = 0; i < count; i++)
+        {
+            Trackers.Add(buffer.ReadString(), buffer.ReadTimeSpan());
+        }
+    }
+
+    public override void WriteToBuffer(NetOutgoingMessage buffer)
+    {
+        buffer.WriteVariableInt32(Trackers.Count);
+
+        foreach (var (role, time) in Trackers)
+        {
+            buffer.Write(role);
+            buffer.Write(time);
+        }
+    }
+}