sync from GitHub: fix: indentation error in _embed_image_batch

sync from GitHub: fix: single model instance, OOM retry with batch reduction, better logging

finalize release 1 changes

add gaussian, triangular and 2D smoothing over poolings

add pooling configurations

refactor pooling options

add github CI/CD

add cascaseded retrievers

Fix imports in quick_test.py and remove __pycache__ files

Initial commit: visual-rag-toolkit