fix(core): Converts healthbar packets (#367)

- [X] Converts healthbar packets

Projects/Server.Tests/Tests/Network/Packets/Outgoing/MobilePackets.cs

@@ -174,4 +174,50 @@ namespace Server.Tests.Network
             Stream.Write((byte)delay);
         }
     }
+
+    public sealed class HealthbarPoison : Packet
+    {
+        public HealthbarPoison(Mobile m) : base(0x17)
+        {
+            EnsureCapacity(12);
+
+            Stream.Write(m.Serial);
+            Stream.Write((short)1); // Show Bar?
+
+            Stream.Write((short)1); // Poison Bar
+
+            var p = m.Poison;
+
+            if (p != null)
+            {
+                Stream.Write((byte)(p.Level + 1));
+            }
+            else
+            {
+                Stream.Write((byte)0);
+            }
+        }
+    }
+
+    public sealed class HealthbarYellow : Packet
+    {
+        public HealthbarYellow(Mobile m) : base(0x17)
+        {
+            EnsureCapacity(12);
+
+            Stream.Write(m.Serial);
+            Stream.Write((short)1);
+
+            Stream.Write((short)2);
+
+            if (m.Blessed || m.YellowHealthbar)
+            {
+                Stream.Write((byte)1);
+            }
+            else
+            {
+                Stream.Write((byte)0);
+            }
+        }
+    }
 }