Changed name to pt2d and remove unnecessary files

ast2d/__pycache__/__init__.cpython-310.pyc

ast2d/__pycache__/advancedSettingsWidget.cpython-310.pyc

ast2d/__pycache__/circleEditorGraphicsView.cpython-310.pyc

ast2d/__pycache__/circleEditorWidget.cpython-310.pyc

ast2d/__pycache__/circle_edge_kernel.cpython-310.pyc

ast2d/__pycache__/compute_cost_image.cpython-310.pyc

ast2d/__pycache__/compute_disk_size.cpython-310.pyc

ast2d/__pycache__/draggableCircleItem.cpython-310.pyc

ast2d/__pycache__/find_path.cpython-310.pyc

ast2d/__pycache__/imageGraphicsView.cpython-310.pyc

ast2d/__pycache__/labeledPointItem.cpython-310.pyc

ast2d/__pycache__/load_image.cpython-310.pyc

ast2d/__pycache__/mainWindow.cpython-310.pyc

ast2d/__pycache__/panZoomGraphicsView.cpython-310.pyc

ast2d/__pycache__/preprocess_image.cpython-310.pyc

functions.md

functions.md.save

pt2d/__init__.py

pt2d/advancedSettingsWidget.py

pt2d/circleEditorGraphicsView.py