Add integration tests for Dungeon Editor and object parsing functionality

- Updated CMakeLists.txt to include new test files for CPU, PPU, SPC700, APU, and dungeon editor integration tests.
- Introduced new testing helpers in testing.h for validating StatusOr objects with specific error messages and codes.
- Added comprehensive integration tests for the DungeonEditor, covering object parsing, rendering, and room graphics.
- Created mock ROM and object data setups to facilitate testing without real ROM files.
- Implemented various test cases to ensure the reliability of object parsing and rendering logic in the dungeon editor.

test/CMakeLists.txt

@@ -24,6 +24,10 @@ add_executable(
   zelda3/message_test.cc
   zelda3/overworld_test.cc
   zelda3/sprite_builder_test.cc
+  integration/dungeon_editor_test.cc
+  zelda3/object_parser_test.cc
+  zelda3/object_parser_structs_test.cc
+  zelda3/test_dungeon_objects.cc
   ${ASAR_STATIC_SRC}
   ${IMGUI_SRC}
   ${IMGUI_TEST_ENGINE_SOURCES}