figure image bounding box annotation for single document (#389)

* enable debug logging for tests

* added cli scaffolding

* extract images from pdf

* fixed type hint

* added bounding box to_list

* converted bounding box to named tuple

* added tests for validate

* implemented bounding box intersection

* implemented finding bounding boxes of single image

* added test for smaller partial image

* added libgl1 for open cv

* linting: use with statement for Popen

* added support for multiple image files

* added support for xml files

* join graphic href with xml dirname

* renamed cv2 to cv

* using ObjectDetectorMatcher

* moved funtions to image object matching module

* added TestGetObjectMatch

* added ImageObjectMarchResult

* added test_should_match_smaller_image

* added test_should_match_smaller_rotated_90_image

* fixed typo ImageObjectMatchResult

* moved object_detector_matcher parameter down

* added get_image_list_object_match

* added su...