Cleaned up and created doxygen documentation

PicPuzzle/doxygen/html/_hint_generator_test_8java.html

PicPuzzle/doxygen/html/_hints_8java.html

PicPuzzle/doxygen/html/_hints_test_8java.html

PicPuzzle/doxygen/html/_junit_test_8java.html

PicPuzzle/doxygen/html/_main_frame_8java.html

PicPuzzle/doxygen/html/_nonogram_8java.html

PicPuzzle/doxygen/html/_nonogram_component_8java.html

PicPuzzle/doxygen/html/_nonogram_event_listener_8java.html

PicPuzzle/doxygen/html/annotated.html

PicPuzzle/doxygen/html/arrowdown.png

PicPuzzle/doxygen/html/arrowright.png

PicPuzzle/doxygen/html/bc_s.png

PicPuzzle/doxygen/html/bdwn.png

...tml/class_pic_puzzle_1_1_hint_generator_test-members.html

...oxygen/html/class_pic_puzzle_1_1_hint_generator_test.html

...class_pic_puzzle_1_1_hint_generator_test__coll__graph.map

...class_pic_puzzle_1_1_hint_generator_test__coll__graph.md5

...class_pic_puzzle_1_1_hint_generator_test__coll__graph.png

...zzle/doxygen/html/class_pic_puzzle_1_1_hints-members.html

PicPuzzle/doxygen/html/class_pic_puzzle_1_1_hints.html