[Emulator] Improvements to launch_data

Added support for autoload titles on boot with:
- Specific launch data
- Specific xex
- Restarting into packages: XamContentLaunchImageFromFileInternal

src/xenia/app/xenia_main.cc

@@ -27,6 +27,7 @@
 #include "xenia/config.h"
 #include "xenia/debug/ui/debug_window.h"
 #include "xenia/emulator.h"
+#include "xenia/kernel/xam/xam_module.h"
 #include "xenia/ui/file_picker.h"
 #include "xenia/ui/window.h"
 #include "xenia/ui/window_listener.h"
@@ -624,6 +625,20 @@ void EmulatorApp::EmulatorThread() {
     }
   }
 
+  auto xam = emulator_->kernel_state()->GetKernelModule<kernel::xam::XamModule>(
+      "xam.xex");
+
+  if (xam) {
+    xam->LoadLoaderData();
+
+    if (xam->loader_data().launch_data_present) {
+      const std::filesystem::path host_path = xam->loader_data().host_path;
+      app_context().CallInUIThread([this, host_path]() {
+        return emulator_window_->RunTitle(host_path);
+      });
+    }
+  }
+
   // Now, we're going to use this thread to drive events related to emulation.
   while (!emulator_thread_quit_requested_.load(std::memory_order_relaxed)) {
     xe::threading::Wait(emulator_thread_event_.get(), false);