Replace MSVC __debugbreak with cross-compiler DEBUG_BREAK macro. (#1540)

Minecraft.World/CustomPayloadPacket.cpp

@@ -44,7 +44,7 @@ CustomPayloadPacket::CustomPayloadPacket(const wstring &identifier, byteArray da
 		{
 			app.DebugPrintf("Payload may not be larger than 32K\n");
 #ifndef _CONTENT_PACKAGE
-			__debugbreak();
+			DEBUG_BREAK();
 #endif
 			//throw new IllegalArgumentException("Payload may not be larger than 32k");
 		}