Add README.md

Add stitch_studio/ui/main_window.py

Add stitch_studio/ui/panels.py

Add stitch_studio/ui/canvas.py

Add stitch_studio/core/export_engine.py

Add stitch_studio/core/stitch_engine.py

Add stitch_studio/core/image_engine.py

Add stitch_studio/core/project.py

Add stitch_studio/core/thread_db.py

Add stitch_studio/__main__.py

Add stitch_studio package init

Add ui package init

Add data package init

Add core package init

Add requirements.txt

Add setup.py

Add launcher script

initial commit