Add GUI skeleton
More work on GUI skeleton
Update GUI skeleton
Implement IntroPage, ConnectPage and ConfigurePage
Decouple workflow steps from CLI
Update device API
Move getch to CLI code
Make pluginmanager singleton
Use concurrent.futures for multithreading/multiprocessing
CHDKCameras: Support for preview images from viewport
GUI protoype
Fix bug in scantailor plugin
Update TODO
Add Tesseract OCR plugin
Add OCR support to pdfbeads plugin
Update TODO
Bugfix in workflow