Add NetworkMessage Guid write and read methods

Source/Engine/Networking/NetworkMessage.cs

@@ -275,6 +275,24 @@ namespace FlaxEngine.Networking
             return new string(bytes, 0, stringLength);
         }
 
+        /// <summary>
+        /// Writes data of type <see cref="Guid"/> into the message.
+        /// </summary>
+        public void WriteGuid(Guid value)
+        {
+            WriteBytes((byte*)&value, sizeof(Guid));
+        }
+
+        /// <summary>
+        /// Reads and returns data of type <see cref="Guid"/> from the message.
+        /// </summary>
+        public Guid ReadGuid()
+        {
+            var guidData = stackalloc Guid[1];
+            ReadBytes((byte*)guidData, sizeof(Guid));
+            return guidData[0];
+        }
+
         /// <summary>
         /// Writes data of type <see cref="Vector2"/> into the message.
         /// </summary>

Source/Engine/Networking/NetworkMessage.h

@@ -201,6 +201,24 @@ public:
         ReadBytes((uint8*)value.Get(), length * sizeof(wchar_t));
         return value;
     }
+    
+    /// <summary>
+    /// Writes data of type Guid into the message.
+    /// </summary>
+    FORCE_INLINE void WriteGuid(const Guid& value)
+    {
+        WriteBytes((uint8*)&value, sizeof(Guid));
+    }
+
+    /// <summary>
+    /// Reads and returns data of type Guid from the message.
+    /// </summary>
+    FORCE_INLINE Guid ReadGuid()
+    {
+        Guid value = Guid();
+        ReadBytes((uint8*)&value, sizeof(Guid));
+        return value;
+    }
 
 public:
     /// <summary>