Enhance testing framework and UI integration for YAZE

- Added a comprehensive testing framework with support for unit, integration, and UI tests, improving overall test coverage and reliability.
- Integrated ImGui Test Engine for UI testing, allowing for real-time feedback and visualization of test results.
- Updated CMake configuration to conditionally include testing components based on build options, enhancing flexibility for developers.
- Introduced a new command in the CLI for running asset loading tests on ROMs, providing a straightforward way to validate functionality.
- Enhanced error handling and resource management during testing, ensuring stability and clarity in test execution.
- Improved user interface with a dedicated test dashboard for monitoring test progress and results, enhancing developer experience.

src/app/editor/editor_manager.h

@@ -109,6 +109,9 @@ class EditorManager {
   absl::Status OpenRomOrProject(const std::string& filename);
   absl::Status OpenProject();
   absl::Status SaveProject();
+  
+  // Testing system
+  void InitializeTestSuites();
 
   bool quit_ = false;
   bool backup_rom_ = false;
@@ -131,6 +134,9 @@ class EditorManager {
   bool show_homepage_ = true;
   bool show_command_palette_ = false;
   bool show_global_search_ = false;
+  
+  // Testing interface
+  bool show_test_dashboard_ = false;
 
   std::string version_ = "";
   std::string settings_filename_ = "settings.ini";