Add Overworld accessors and enhance testing framework

- Introduced new methods in `Controller`, `EditorManager`, and `OverworldEditor` to access the `Overworld` instance, improving modularity and interaction with the overworld data.
- Added `GetTile` method in `Overworld` to retrieve tile data based on coordinates, enhancing functionality for tile manipulation.
- Implemented a new testing framework with automated GUI tests, including `CanvasSelectionTest` and `FrameworkSmokeTest`, to validate user interactions and ensure robustness.
- Updated `CMakeLists.txt` to include new test files and dependencies, streamlining the build process for testing.
- Refactored logging behavior to ensure proper file handling during logging operations, improving reliability in logging outputs.

test/test_utils.cc

@@ -0,0 +1,19 @@
+#include "test_utils.h"
+#include "app/core/controller.h"
+
+namespace yaze {
+namespace test {
+namespace gui {
+
+void LoadRomInTest(ImGuiTestContext* ctx, const std::string& rom_path) {
+    yaze::core::Controller* controller = (yaze::core::Controller*)ctx->Test->UserData;
+    controller->OnEntry(rom_path);
+}
+
+void OpenEditorInTest(ImGuiTestContext* ctx, const std::string& editor_name) {
+    ctx->MenuClick(absl::StrFormat("Editors/%s", editor_name).c_str());
+}
+
+} // namespace gui
+} // namespace test
+} // namespace yaze