refactor(cmake): update include paths and defer test support linkage

- Updated include paths in several source files to reflect the new directory structure, ensuring consistency across the project.
- Deferred the linkage of the yaze_test_support library to the test.cmake file for better dependency management and ordering.

Benefits:
- Improved organization of include paths for better maintainability.
- Enhanced modularity by managing test dependencies separately.

test/CMakeLists.txt

@@ -16,6 +16,7 @@ if(YAZE_BUILD_TESTS)
       ${CMAKE_SOURCE_DIR}/src/lib
       ${CMAKE_SOURCE_DIR}/src/lib/imgui
       ${CMAKE_SOURCE_DIR}/src/lib/imgui/backends
+      ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine
       ${CMAKE_SOURCE_DIR}/src/lib/SDL/include
       ${CMAKE_BINARY_DIR}/src/lib/SDL/include
       ${PROJECT_BINARY_DIR}