adding code for answer classifier and region ranker

classifiers/__init__.py

classifiers/answer_classifier/__init__.py

classifiers/answer_classifier/__init__.pyc

classifiers/answer_classifier/ans_data_io_helper.py

classifiers/answer_classifier/ans_data_io_helper.pyc

classifiers/answer_classifier/train_ans_classifier.py

classifiers/object_classifiers/#obj_data_io_helper.py#

classifiers/object_classifiers/.#obj_data_io_helper.py

classifiers/object_classifiers/train_obj_classifier.pyc

classifiers/region_ranker/__init__.py

classifiers/region_ranker/__init__.pyc

classifiers/region_ranker/perfect_ranker.py

classifiers/region_ranker/perfect_ranker.pyc

classifiers/saved_models/obj_atr_classifier-1

classifiers/tf_graph_creation_helper.py

classifiers/tf_graph_creation_helper.pyc

classifiers/train_classifiers.py