Implemented warp debug menu feature

src/game/debug.cpp

@@ -0,0 +1,17 @@
+#include <atomic>
+#include "recomp_debug.h"
+#include "recomp_helpers.h"
+#include "../patches/input.h"
+
+std::atomic<uint16_t> pending_warp = 0xFFFF;
+
+void recomp::do_warp(int area, int scene, int entrance) {
+    const recomp::SceneWarps game_scene = recomp::game_warps[area].scenes[scene];
+    int game_scene_index = game_scene.index;
+    pending_warp.store(((game_scene_index & 0xFF) << 8) | ((entrance & 0x0F) << 4));
+}
+
+extern "C" void recomp_get_pending_warp(uint8_t* rdram, recomp_context* ctx) {
+    // Return the current warp value and reset it.
+    _return(ctx, pending_warp.exchange(0xFFFF));
+}