feat(p2p): Allow overriding the p2p udp port for Minecraft

the idea is that you might port forward this in your router and give yourself NAT type A for free

src/utils/sysconfig.h

@@ -6,7 +6,10 @@
 #define INKAY_SYSCONFIG_H
 
 #include <nn/swkbd.h>
+#include <coreinit/mcp.h>
 
 nn::swkbd::LanguageType get_system_language();
+const char * get_console_serial();
+MCPSystemVersion get_console_os_version();
 
 #endif //INKAY_SYSCONFIG_H