update impress eval examples

desktop_env/evaluators/metrics/__init__.py

@@ -15,3 +15,4 @@ from .general import check_csv, check_accessibility_tree, check_list, run_sqlite
 from .thunderbird import check_thunderbird_prefs, check_thunderbird_filter
 from .vscode import compare_text_file, compare_config, compare_answer, is_extension_installed
 from .impress import check_slide_numbers_color, compare_pptx_files, check_for_two_lines, check_for_audio, check_formula_shape, check_file_exists
+from .impress import check_slide_orientation_Portrait, contains_mp4_video