Add DuckTrack as initial annotation tool; Initial multimodal test

annotation/main.py

@@ -0,0 +1,39 @@
+import signal
+import sys
+import traceback
+
+from PyQt6.QtWidgets import QApplication
+
+from ducktrack import MainInterface
+
+
+def main():
+    app = QApplication(sys.argv)
+    app.setQuitOnLastWindowClosed(False)
+    signal.signal(signal.SIGINT, signal.SIG_DFL)
+    interface = MainInterface(app)
+    interface.show()
+    
+    # TODO: come up with a better error solution to this
+
+    original_excepthook = sys.excepthook
+    def handle_exception(exc_type, exc_value, exc_traceback):
+        print("Exception type:", exc_type)
+        print("Exception value:", exc_value)
+        
+        trace_details = traceback.format_exception(exc_type, exc_value, exc_traceback)
+        trace_string = "".join(trace_details)
+
+        print("Exception traceback:", trace_string)
+
+        message = f"An error occurred!\n\n{exc_value}\n\n{trace_string}"
+        interface.display_error_message(message)
+        
+        original_excepthook(exc_type, exc_value, exc_traceback)
+
+    sys.excepthook = handle_exception
+
+    sys.exit(app.exec())
+
+if __name__ == "__main__":
+    main()