Add a simple .rpl file example.

samples/my_first_rpl/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.2)
+project(my_first_rpl C)
+include("${WUT_ROOT}/share/wut.cmake" REQUIRED)
+
+add_executable(my_first_rpl
+   my_first_rpl.c)
+
+wut_add_exports(my_first_rpl
+   exports.def)
+
+wut_create_rpl(my_first_rpl.rpl
+               my_first_rpl)
+
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/my_first_rpl.rpl"
+        DESTINATION "${CMAKE_INSTALL_PREFIX}")

samples/my_first_rpl/exports.def

@@ -0,0 +1,2 @@
+:TEXT
+my_first_export

samples/my_first_rpl/my_first_rpl.c

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+#include <coreinit/dynload.h>
+
+int
+my_first_export()
+{
+   return 1;
+}
+
+int
+rpl_main(OSDynLoad_Module module,
+         OSDynLoad_EntryReason reason)
+{
+   if (reason == OS_DYNLOAD_LOADED) {
+      // Do stuff on load
+   } else if (reason == OS_DYNLOAD_UNLOADED) {
+      // Do stuff on unload
+   }
+
+   return 0;
+}